Finding the Fourth Proportional to 82,769.90, 124,206.15 and 43,355.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,769.90 : 124,206.15 = 43,355.30 : x
2. Step 2: Convert to fraction form
   82,769.90/124,206.15 = 43,355.30/x
3. Step 3: Cross multiply
   82,769.90x = 124,206.15 × 43,355.30
4. Step 4: Simplify right side
   82,769.90x = 5,384,994,895.10
5. Step 5: Solve for x
   x = 5,384,994,895.10/82,769.90
6. Step 6: Final answer
   x = 65,059.82