Finding the Fourth Proportional to 89,812.56, 123,944.32 and 48,978.92

Step by Step Solution

1. Step 1: Write the proportion equation
   89,812.56 : 123,944.32 = 48,978.92 : x
2. Step 2: Convert to fraction form
   89,812.56/123,944.32 = 48,978.92/x
3. Step 3: Cross multiply
   89,812.56x = 123,944.32 × 48,978.92
4. Step 4: Simplify right side
   89,812.56x = 6,070,658,933.73
5. Step 5: Solve for x
   x = 6,070,658,933.73/89,812.56
6. Step 6: Final answer
   x = 67,592.54