Finding the Fourth Proportional to 90,168.66, 124,482.42 and 67,499.49

Step by Step Solution

1. Step 1: Write the proportion equation
   90,168.66 : 124,482.42 = 67,499.49 : x
2. Step 2: Convert to fraction form
   90,168.66/124,482.42 = 67,499.49/x
3. Step 3: Cross multiply
   90,168.66x = 124,482.42 × 67,499.49
4. Step 4: Simplify right side
   90,168.66x = 8,402,499,863.97
5. Step 5: Solve for x
   x = 8,402,499,863.97/90,168.66
6. Step 6: Final answer
   x = 93,186.48