Finding the Fourth Proportional to 144,322.56, 216,328.32 and 81,959.04

Step by Step Solution

1. Step 1: Write the proportion equation
   144,322.56 : 216,328.32 = 81,959.04 : x
2. Step 2: Convert to fraction form
   144,322.56/216,328.32 = 81,959.04/x
3. Step 3: Cross multiply
   144,322.56x = 216,328.32 × 81,959.04
4. Step 4: Simplify right side
   144,322.56x = 17,730,061,432.01
5. Step 5: Solve for x
   x = 17,730,061,432.01/144,322.56
6. Step 6: Final answer
   x = 122,850.24