Finding the Fourth Proportional to 123,159.89, 169,962.53 and 72,160.41

Step by Step Solution

1. Step 1: Write the proportion equation
   123,159.89 : 169,962.53 = 72,160.41 : x
2. Step 2: Convert to fraction form
   123,159.89/169,962.53 = 72,160.41/x
3. Step 3: Cross multiply
   123,159.89x = 169,962.53 × 72,160.41
4. Step 4: Simplify right side
   123,159.89x = 12,264,566,029.84
5. Step 5: Solve for x
   x = 12,264,566,029.84/123,159.89
6. Step 6: Final answer
   x = 99,582.47