Finding the Fourth Proportional to 102,315.96, 141,195.78 and 71,733.96

Step by Step Solution

1. Step 1: Write the proportion equation
   102,315.96 : 141,195.78 = 71,733.96 : x
2. Step 2: Convert to fraction form
   102,315.96/141,195.78 = 71,733.96/x
3. Step 3: Cross multiply
   102,315.96x = 141,195.78 × 71,733.96
4. Step 4: Simplify right side
   102,315.96x = 10,128,532,434.69
5. Step 5: Solve for x
   x = 10,128,532,434.69/102,315.96
6. Step 6: Final answer
   x = 98,992.69