Finding the Fourth Proportional to 86,009.34, 129,063.15 and 33,411.99

Step by Step Solution

1. Step 1: Write the proportion equation
   86,009.34 : 129,063.15 = 33,411.99 : x
2. Step 2: Convert to fraction form
   86,009.34/129,063.15 = 33,411.99/x
3. Step 3: Cross multiply
   86,009.34x = 129,063.15 × 33,411.99
4. Step 4: Simplify right side
   86,009.34x = 4,312,256,677.17
5. Step 5: Solve for x
   x = 4,312,256,677.17/86,009.34
6. Step 6: Final answer
   x = 50,137.07