Finding the Fourth Proportional to 103,082.46, 142,192.71 and 65,291.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,082.46 : 142,192.71 = 65,291.10 : x
2. Step 2: Convert to fraction form
   103,082.46/142,192.71 = 65,291.10/x
3. Step 3: Cross multiply
   103,082.46x = 142,192.71 × 65,291.10
4. Step 4: Simplify right side
   103,082.46x = 9,283,918,447.88
5. Step 5: Solve for x
   x = 9,283,918,447.88/103,082.46
6. Step 6: Final answer
   x = 90,063.03