Finding the Fourth Proportional to 488,168,061.71, 673,676,868.71 and 265,154,098.10

Step by Step Solution

1. Step 1: Write the proportion equation
   488,168,061.71 : 673,676,868.71 = 265,154,098.10 : x
2. Step 2: Convert to fraction form
   488,168,061.71/673,676,868.71 = 265,154,098.10/x
3. Step 3: Cross multiply
   488,168,061.71x = 673,676,868.71 × 265,154,098.10
4. Step 4: Simplify right side
   488,168,061.71x = 178,628,182,530,926,656
5. Step 5: Solve for x
   x = 178,628,182,530,926,656/488,168,061.71
6. Step 6: Final answer
   x = 365,915,340.52