Finding the Fourth Proportional to 89,622.72, 123,679.80 and 49,340.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,622.72 : 123,679.80 = 49,340.52 : x
2. Step 2: Convert to fraction form
   89,622.72/123,679.80 = 49,340.52/x
3. Step 3: Cross multiply
   89,622.72x = 123,679.80 × 49,340.52
4. Step 4: Simplify right side
   89,622.72x = 6,102,425,645.50
5. Step 5: Solve for x
   x = 6,102,425,645.50/89,622.72
6. Step 6: Final answer
   x = 68,090.16