Finding the Fourth Proportional to 103,304.20, 142,499.76 and 65,048.74

Step by Step Solution

1. Step 1: Write the proportion equation
   103,304.20 : 142,499.76 = 65,048.74 : x
2. Step 2: Convert to fraction form
   103,304.20/142,499.76 = 65,048.74/x
3. Step 3: Cross multiply
   103,304.20x = 142,499.76 × 65,048.74
4. Step 4: Simplify right side
   103,304.20x = 9,269,429,838.30
5. Step 5: Solve for x
   x = 9,269,429,838.30/103,304.20
6. Step 6: Final answer
   x = 89,729.46