Finding the Fourth Proportional to 90,196.71, 124,471.67 and 49,913.22

Step by Step Solution

1. Step 1: Write the proportion equation
   90,196.71 : 124,471.67 = 49,913.22 : x
2. Step 2: Convert to fraction form
   90,196.71/124,471.67 = 49,913.22/x
3. Step 3: Cross multiply
   90,196.71x = 124,471.67 × 49,913.22
4. Step 4: Simplify right side
   90,196.71x = 6,212,781,848.48
5. Step 5: Solve for x
   x = 6,212,781,848.48/90,196.71
6. Step 6: Final answer
   x = 68,880.36