Finding the Fourth Proportional to 82,917.90, 124,428.15 and 43,503.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,917.90 : 124,428.15 = 43,503.30 : x
2. Step 2: Convert to fraction form
   82,917.90/124,428.15 = 43,503.30/x
3. Step 3: Cross multiply
   82,917.90x = 124,428.15 × 43,503.30
4. Step 4: Simplify right side
   82,917.90x = 5,413,035,137.90
5. Step 5: Solve for x
   x = 5,413,035,137.90/82,917.90
6. Step 6: Final answer
   x = 65,281.86