Finding the Fourth Proportional to 103,248.48, 142,404.72 and 71,470.56

Step by Step Solution

1. Step 1: Write the proportion equation
   103,248.48 : 142,404.72 = 71,470.56 : x
2. Step 2: Convert to fraction form
   103,248.48/142,404.72 = 71,470.56/x
3. Step 3: Cross multiply
   103,248.48x = 142,404.72 × 71,470.56
4. Step 4: Simplify right side
   103,248.48x = 10,177,745,085.04
5. Step 5: Solve for x
   x = 10,177,745,085.04/103,248.48
6. Step 6: Final answer
   x = 98,575.25