Finding the Fourth Proportional to 103,082.02, 142,250.78 and 60,643.28

Step by Step Solution

1. Step 1: Write the proportion equation
   103,082.02 : 142,250.78 = 60,643.28 : x
2. Step 2: Convert to fraction form
   103,082.02/142,250.78 = 60,643.28/x
3. Step 3: Cross multiply
   103,082.02x = 142,250.78 × 60,643.28
4. Step 4: Simplify right side
   103,082.02x = 8,626,553,881.76
5. Step 5: Solve for x
   x = 8,626,553,881.76/103,082.02
6. Step 6: Final answer
   x = 83,686.31