Finding the Fourth Proportional to 151,500.66, 209,072.37 and 83,520.29

Step by Step Solution

1. Step 1: Write the proportion equation
   151,500.66 : 209,072.37 = 83,520.29 : x
2. Step 2: Convert to fraction form
   151,500.66/209,072.37 = 83,520.29/x
3. Step 3: Cross multiply
   151,500.66x = 209,072.37 × 83,520.29
4. Step 4: Simplify right side
   151,500.66x = 17,461,784,450.71
5. Step 5: Solve for x
   x = 17,461,784,450.71/151,500.66
6. Step 6: Final answer
   x = 115,258.80