Finding the Fourth Proportional to 151,981.85, 209,728.42 and 83,995.31

Step by Step Solution

1. Step 1: Write the proportion equation
   151,981.85 : 209,728.42 = 83,995.31 : x
2. Step 2: Convert to fraction form
   151,981.85/209,728.42 = 83,995.31/x
3. Step 3: Cross multiply
   151,981.85x = 209,728.42 × 83,995.31
4. Step 4: Simplify right side
   151,981.85x = 17,616,203,653.71
5. Step 5: Solve for x
   x = 17,616,203,653.71/151,981.85
6. Step 6: Final answer
   x = 115,909.92