Finding the Fourth Proportional to 89,564.55, 123,596.46 and 49,278.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,564.55 : 123,596.46 = 49,278.30 : x
2. Step 2: Convert to fraction form
   89,564.55/123,596.46 = 49,278.30/x
3. Step 3: Cross multiply
   89,564.55x = 123,596.46 × 49,278.30
4. Step 4: Simplify right side
   89,564.55x = 6,090,623,434.82
5. Step 5: Solve for x
   x = 6,090,623,434.82/89,564.55
6. Step 6: Final answer
   x = 68,002.61