Finding the Fourth Proportional to 82,906.62, 124,396.65 and 43,454.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82,906.62 : 124,396.65 = 43,454.31 : x
2. Step 2: Convert to fraction form
   82,906.62/124,396.65 = 43,454.31/x
3. Step 3: Cross multiply
   82,906.62x = 124,396.65 × 43,454.31
4. Step 4: Simplify right side
   82,906.62x = 5,405,570,592.06
5. Step 5: Solve for x
   x = 5,405,570,592.06/82,906.62
6. Step 6: Final answer
   x = 65,200.71