Finding the Fourth Proportional to 151,501.16, 209,073.06 and 83,520.79

Step by Step Solution

1. Step 1: Write the proportion equation
   151,501.16 : 209,073.06 = 83,520.79 : x
2. Step 2: Convert to fraction form
   151,501.16/209,073.06 = 83,520.79/x
3. Step 3: Cross multiply
   151,501.16x = 209,073.06 × 83,520.79
4. Step 4: Simplify right side
   151,501.16x = 17,461,946,616.23
5. Step 5: Solve for x
   x = 17,461,946,616.23/151,501.16
6. Step 6: Final answer
   x = 115,259.49