Finding the Fourth Proportional to 162,885.12, 244,356.84 and 83,978.16

Step by Step Solution

1. Step 1: Write the proportion equation
   162,885.12 : 244,356.84 = 83,978.16 : x
2. Step 2: Convert to fraction form
   162,885.12/244,356.84 = 83,978.16/x
3. Step 3: Cross multiply
   162,885.12x = 244,356.84 × 83,978.16
4. Step 4: Simplify right side
   162,885.12x = 20,520,637,806.61
5. Step 5: Solve for x
   x = 20,520,637,806.61/162,885.12
6. Step 6: Final answer
   x = 125,982.27