Finding the Fourth Proportional to 151,501.64, 209,072.89 and 83,517.12

Step by Step Solution

1. Step 1: Write the proportion equation
   151,501.64 : 209,072.89 = 83,517.12 : x
2. Step 2: Convert to fraction form
   151,501.64/209,072.89 = 83,517.12/x
3. Step 3: Cross multiply
   151,501.64x = 209,072.89 × 83,517.12
4. Step 4: Simplify right side
   151,501.64x = 17,461,166,400.28
5. Step 5: Solve for x
   x = 17,461,166,400.28/151,501.64
6. Step 6: Final answer
   x = 115,253.98