Finding the Fourth Proportional to 109,688.10, 151,291.98 and 71,377.13

Step by Step Solution

1. Step 1: Write the proportion equation
   109,688.10 : 151,291.98 = 71,377.13 : x
2. Step 2: Convert to fraction form
   109,688.10/151,291.98 = 71,377.13/x
3. Step 3: Cross multiply
   109,688.10x = 151,291.98 × 71,377.13
4. Step 4: Simplify right side
   109,688.10x = 10,798,786,567.96
5. Step 5: Solve for x
   x = 10,798,786,567.96/109,688.10
6. Step 6: Final answer
   x = 98,449.94