Finding the Fourth Proportional to 89,870.88, 124,013.40 and 49,575.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,870.88 : 124,013.40 = 49,575.12 : x
2. Step 2: Convert to fraction form
   89,870.88/124,013.40 = 49,575.12/x
3. Step 3: Cross multiply
   89,870.88x = 124,013.40 × 49,575.12
4. Step 4: Simplify right side
   89,870.88x = 6,147,979,186.61
5. Step 5: Solve for x
   x = 6,147,979,186.61/89,870.88
6. Step 6: Final answer
   x = 68,409.02