Finding the Fourth Proportional to 82,891.97, 124,374.71 and 43,439.71

Step by Step Solution

1. Step 1: Write the proportion equation
   82,891.97 : 124,374.71 = 43,439.71 : x
2. Step 2: Convert to fraction form
   82,891.97/124,374.71 = 43,439.71/x
3. Step 3: Cross multiply
   82,891.97x = 124,374.71 × 43,439.71
4. Step 4: Simplify right side
   82,891.97x = 5,402,801,131.40
5. Step 5: Solve for x
   x = 5,402,801,131.40/82,891.97
6. Step 6: Final answer
   x = 65,178.82