Finding the Fourth Proportional to 86,317.71, 129,342.27 and 32,980.61

Step by Step Solution

1. Step 1: Write the proportion equation
   86,317.71 : 129,342.27 = 32,980.61 : x
2. Step 2: Convert to fraction form
   86,317.71/129,342.27 = 32,980.61/x
3. Step 3: Cross multiply
   86,317.71x = 129,342.27 × 32,980.61
4. Step 4: Simplify right side
   86,317.71x = 4,265,786,316.67
5. Step 5: Solve for x
   x = 4,265,786,316.67/86,317.71
6. Step 6: Final answer
   x = 49,419.60