Finding the Fourth Proportional to 82,881.50, 124,359.26 and 43,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,881.50 : 124,359.26 = 43,429.50 : x
2. Step 2: Convert to fraction form
   82,881.50/124,359.26 = 43,429.50/x
3. Step 3: Cross multiply
   82,881.50x = 124,359.26 × 43,429.50
4. Step 4: Simplify right side
   82,881.50x = 5,400,860,265.02
5. Step 5: Solve for x
   x = 5,400,860,265.02/82,881.50
6. Step 6: Final answer
   x = 65,163.64