Finding the Fourth Proportional to 89,743.88, 134,617.90 and 42,945.32

Step by Step Solution

1. Step 1: Write the proportion equation
   89,743.88 : 134,617.90 = 42,945.32 : x
2. Step 2: Convert to fraction form
   89,743.88/134,617.90 = 42,945.32/x
3. Step 3: Cross multiply
   89,743.88x = 134,617.90 × 42,945.32
4. Step 4: Simplify right side
   89,743.88x = 5,781,208,793.23
5. Step 5: Solve for x
   x = 5,781,208,793.23/89,743.88
6. Step 6: Final answer
   x = 64,418.98