Finding the Fourth Proportional to 123,723,321.79, 170,719,204.29 and 71,502,272.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,723,321.79 : 170,719,204.29 = 71,502,272.47 : x
2. Step 2: Convert to fraction form
   123,723,321.79/170,719,204.29 = 71,502,272.47/x
3. Step 3: Cross multiply
   123,723,321.79x = 170,719,204.29 × 71,502,272.47
4. Step 4: Simplify right side
   123,723,321.79x = 12,206,811,061,005,172
5. Step 5: Solve for x
   x = 12,206,811,061,005,172/123,723,321.79
6. Step 6: Final answer
   x = 98,662,167.20