Finding the Fourth Proportional to 69,788,733.69, 104,694,462.71 and 20,609,561.42

Step by Step Solution

1. Step 1: Write the proportion equation
   69,788,733.69 : 104,694,462.71 = 20,609,561.42 : x
2. Step 2: Convert to fraction form
   69,788,733.69/104,694,462.71 = 20,609,561.42/x
3. Step 3: Cross multiply
   69,788,733.69x = 104,694,462.71 × 20,609,561.42
4. Step 4: Simplify right side
   69,788,733.69x = 2,157,706,959,555,644.75
5. Step 5: Solve for x
   x = 2,157,706,959,555,644.75/69,788,733.69
6. Step 6: Final answer
   x = 30,917,697.53