Finding the Fourth Proportional to 89,128.74, 123,000.66 and 48,842.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,128.74 : 123,000.66 = 48,842.15 : x
2. Step 2: Convert to fraction form
   89,128.74/123,000.66 = 48,842.15/x
3. Step 3: Cross multiply
   89,128.74x = 123,000.66 × 48,842.15
4. Step 4: Simplify right side
   89,128.74x = 6,007,616,685.82
5. Step 5: Solve for x
   x = 6,007,616,685.82/89,128.74
6. Step 6: Final answer
   x = 67,403.81