Finding the Fourth Proportional to 89,919.55, 124,091.99 and 49,086.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,919.55 : 124,091.99 = 49,086.10 : x
2. Step 2: Convert to fraction form
   89,919.55/124,091.99 = 49,086.10/x
3. Step 3: Cross multiply
   89,919.55x = 124,091.99 × 49,086.10
4. Step 4: Simplify right side
   89,919.55x = 6,091,191,830.34
5. Step 5: Solve for x
   x = 6,091,191,830.34/89,919.55
6. Step 6: Final answer
   x = 67,740.46