Finding the Fourth Proportional to 89,791.31, 134,714.37 and 42,442.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,791.31 : 134,714.37 = 42,442.76 : x
2. Step 2: Convert to fraction form
   89,791.31/134,714.37 = 42,442.76/x
3. Step 3: Cross multiply
   89,791.31x = 134,714.37 × 42,442.76
4. Step 4: Simplify right side
   89,791.31x = 5,717,649,674.46
5. Step 5: Solve for x
   x = 5,717,649,674.46/89,791.31
6. Step 6: Final answer
   x = 63,677.09