Finding the Fourth Proportional to 89,388.86, 123,356.16 and 49,102.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,388.86 : 123,356.16 = 49,102.50 : x
2. Step 2: Convert to fraction form
   89,388.86/123,356.16 = 49,102.50/x
3. Step 3: Cross multiply
   89,388.86x = 123,356.16 × 49,102.50
4. Step 4: Simplify right side
   89,388.86x = 6,057,095,846.40
5. Step 5: Solve for x
   x = 6,057,095,846.40/89,388.86
6. Step 6: Final answer
   x = 67,761.19