Finding the Fourth Proportional to 89,417.16, 123,395.94 and 49,131.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,417.16 : 123,395.94 = 49,131.72 : x
2. Step 2: Convert to fraction form
   89,417.16/123,395.94 = 49,131.72/x
3. Step 3: Cross multiply
   89,417.16x = 123,395.94 × 49,131.72
4. Step 4: Simplify right side
   89,417.16x = 6,062,654,773.22
5. Step 5: Solve for x
   x = 6,062,654,773.22/89,417.16
6. Step 6: Final answer
   x = 67,801.92