Finding the Fourth Proportional to 424,613,722,477.72, 636,922,964,769.55 and 141,631,788,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   424,613,722,477.72 : 636,922,964,769.55 = 141,631,788,949.50 : x
2. Step 2: Convert to fraction form
   424,613,722,477.72/636,922,964,769.55 = 141,631,788,949.50/x
3. Step 3: Cross multiply
   424,613,722,477.72x = 636,922,964,769.55 × 141,631,788,949.50
4. Step 4: Simplify right side
   424,613,722,477.72x = 90,208,538,923,330,732,818,432
5. Step 5: Solve for x
   x = 90,208,538,923,330,732,818,432/424,613,722,477.72
6. Step 6: Final answer
   x = 212,448,477,635.02