Finding the Fourth Proportional to 89,726.42, 123,820.80 and 49,443.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,726.42 : 123,820.80 = 49,443.86 : x
2. Step 2: Convert to fraction form
   89,726.42/123,820.80 = 49,443.86/x
3. Step 3: Cross multiply
   89,726.42x = 123,820.80 × 49,443.86
4. Step 4: Simplify right side
   89,726.42x = 6,122,178,300.29
5. Step 5: Solve for x
   x = 6,122,178,300.29/89,726.42
6. Step 6: Final answer
   x = 68,231.61