Finding the Fourth Proportional to 89,410.56, 123,381.12 and 49,116.48

Step by Step Solution

1. Step 1: Write the proportion equation
   89,410.56 : 123,381.12 = 49,116.48 : x
2. Step 2: Convert to fraction form
   89,410.56/123,381.12 = 49,116.48/x
3. Step 3: Cross multiply
   89,410.56x = 123,381.12 × 49,116.48
4. Step 4: Simplify right side
   89,410.56x = 6,060,046,312.86
5. Step 5: Solve for x
   x = 6,060,046,312.86/89,410.56
6. Step 6: Final answer
   x = 67,777.75