Finding the Fourth Proportional to 90,134.71, 124,389.78 and 49,848.48

Step by Step Solution

1. Step 1: Write the proportion equation
   90,134.71 : 124,389.78 = 49,848.48 : x
2. Step 2: Convert to fraction form
   90,134.71/124,389.78 = 49,848.48/x
3. Step 3: Cross multiply
   90,134.71x = 124,389.78 × 49,848.48
4. Step 4: Simplify right side
   90,134.71x = 6,200,641,460.53
5. Step 5: Solve for x
   x = 6,200,641,460.53/90,134.71
6. Step 6: Final answer
   x = 68,793.05