Finding the Fourth Proportional to 89,847.12, 123,988.42 and 49,561.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,847.12 : 123,988.42 = 49,561.98 : x
2. Step 2: Convert to fraction form
   89,847.12/123,988.42 = 49,561.98/x
3. Step 3: Cross multiply
   89,847.12x = 123,988.42 × 49,561.98
4. Step 4: Simplify right side
   89,847.12x = 6,145,111,592.27
5. Step 5: Solve for x
   x = 6,145,111,592.27/89,847.12
6. Step 6: Final answer
   x = 68,395.20