Finding the Fourth Proportional to 82,830.06, 124,147.88 and 43,405.74

Step by Step Solution

1. Step 1: Write the proportion equation
   82,830.06 : 124,147.88 = 43,405.74 : x
2. Step 2: Convert to fraction form
   82,830.06/124,147.88 = 43,405.74/x
3. Step 3: Cross multiply
   82,830.06x = 124,147.88 × 43,405.74
4. Step 4: Simplify right side
   82,830.06x = 5,388,730,600.83
5. Step 5: Solve for x
   x = 5,388,730,600.83/82,830.06
6. Step 6: Final answer
   x = 65,057.67