Finding the Fourth Proportional to 89,925.86, 124,096.20 and 49,638.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,925.86 : 124,096.20 = 49,638.59 : x
2. Step 2: Convert to fraction form
   89,925.86/124,096.20 = 49,638.59/x
3. Step 3: Cross multiply
   89,925.86x = 124,096.20 × 49,638.59
4. Step 4: Simplify right side
   89,925.86x = 6,159,959,771.88
5. Step 5: Solve for x
   x = 6,159,959,771.88/89,925.86
6. Step 6: Final answer
   x = 68,500.42