Finding the Fourth Proportional to 152,080.76, 209,872.81 and 84,102.31

Step by Step Solution

1. Step 1: Write the proportion equation
   152,080.76 : 209,872.81 = 84,102.31 : x
2. Step 2: Convert to fraction form
   152,080.76/209,872.81 = 84,102.31/x
3. Step 3: Cross multiply
   152,080.76x = 209,872.81 × 84,102.31
4. Step 4: Simplify right side
   152,080.76x = 17,650,787,549.95
5. Step 5: Solve for x
   x = 17,650,787,549.95/152,080.76
6. Step 6: Final answer
   x = 116,061.94