Finding the Fourth Proportional to 89,402.82, 123,375.38 and 49,115.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,402.82 : 123,375.38 = 49,115.72 : x
2. Step 2: Convert to fraction form
   89,402.82/123,375.38 = 49,115.72/x
3. Step 3: Cross multiply
   89,402.82x = 123,375.38 × 49,115.72
4. Step 4: Simplify right side
   89,402.82x = 6,059,669,756.52
5. Step 5: Solve for x
   x = 6,059,669,756.52/89,402.82
6. Step 6: Final answer
   x = 67,779.40