Finding the Fourth Proportional to 90,766.48, 136,066.72 and 38,179.68

Step by Step Solution

1. Step 1: Write the proportion equation
   90,766.48 : 136,066.72 = 38,179.68 : x
2. Step 2: Convert to fraction form
   90,766.48/136,066.72 = 38,179.68/x
3. Step 3: Cross multiply
   90,766.48x = 136,066.72 × 38,179.68
4. Step 4: Simplify right side
   90,766.48x = 5,194,983,828.25
5. Step 5: Solve for x
   x = 5,194,983,828.25/90,766.48
6. Step 6: Final answer
   x = 57,234.61