Finding the Fourth Proportional to 71,510.42, 98,685.06 and 39,682.28

Step by Step Solution

1. Step 1: Write the proportion equation
   71,510.42 : 98,685.06 = 39,682.28 : x
2. Step 2: Convert to fraction form
   71,510.42/98,685.06 = 39,682.28/x
3. Step 3: Cross multiply
   71,510.42x = 98,685.06 × 39,682.28
4. Step 4: Simplify right side
   71,510.42x = 3,916,048,182.74
5. Step 5: Solve for x
   x = 3,916,048,182.74/71,510.42
6. Step 6: Final answer
   x = 54,761.92