Finding the Fourth Proportional to 123,389,892.88, 170,178,764.92 and 108,473,323.32

Step by Step Solution

1. Step 1: Write the proportion equation
   123,389,892.88 : 170,178,764.92 = 108,473,323.32 : x
2. Step 2: Convert to fraction form
   123,389,892.88/170,178,764.92 = 108,473,323.32/x
3. Step 3: Cross multiply
   123,389,892.88x = 170,178,764.92 × 108,473,323.32
4. Step 4: Simplify right side
   123,389,892.88x = 18,459,856,189,365,432
5. Step 5: Solve for x
   x = 18,459,856,189,365,432/123,389,892.88
6. Step 6: Final answer
   x = 149,605,901.74