Finding the Fourth Proportional to 82,140.30, 113,304.69 and 51,872.22

Step by Step Solution

1. Step 1: Write the proportion equation
   82,140.30 : 113,304.69 = 51,872.22 : x
2. Step 2: Convert to fraction form
   82,140.30/113,304.69 = 51,872.22/x
3. Step 3: Cross multiply
   82,140.30x = 113,304.69 × 51,872.22
4. Step 4: Simplify right side
   82,140.30x = 5,877,365,806.71
5. Step 5: Solve for x
   x = 5,877,365,806.71/82,140.30
6. Step 6: Final answer
   x = 71,552.77