Finding the Fourth Proportional to 404,320,870.28, 604,885,570.43 and 306,235,130.42

Step by Step Solution

1. Step 1: Write the proportion equation
   404,320,870.28 : 604,885,570.43 = 306,235,130.42 : x
2. Step 2: Convert to fraction form
   404,320,870.28/604,885,570.43 = 306,235,130.42/x
3. Step 3: Cross multiply
   404,320,870.28x = 604,885,570.43 × 306,235,130.42
4. Step 4: Simplify right side
   404,320,870.28x = 185,237,211,545,251,552
5. Step 5: Solve for x
   x = 185,237,211,545,251,552/404,320,870.28
6. Step 6: Final answer
   x = 458,144,076.06