Finding the Fourth Proportional to 152,359,449.46, 210,273,989.58 and 90,479,788.02

Step by Step Solution

1. Step 1: Write the proportion equation
   152,359,449.46 : 210,273,989.58 = 90,479,788.02 : x
2. Step 2: Convert to fraction form
   152,359,449.46/210,273,989.58 = 90,479,788.02/x
3. Step 3: Cross multiply
   152,359,449.46x = 210,273,989.58 × 90,479,788.02
4. Step 4: Simplify right side
   152,359,449.46x = 19,025,546,003,318,088
5. Step 5: Solve for x
   x = 19,025,546,003,318,088/152,359,449.46
6. Step 6: Final answer
   x = 124,872,766.81