Finding the Fourth Proportional to 162,882.72, 243,991.48 and 83,830.88

Step by Step Solution

1. Step 1: Write the proportion equation
   162,882.72 : 243,991.48 = 83,830.88 : x
2. Step 2: Convert to fraction form
   162,882.72/243,991.48 = 83,830.88/x
3. Step 3: Cross multiply
   162,882.72x = 243,991.48 × 83,830.88
4. Step 4: Simplify right side
   162,882.72x = 20,454,020,480.90
5. Step 5: Solve for x
   x = 20,454,020,480.90/162,882.72
6. Step 6: Final answer
   x = 125,575.14