Finding the Fourth Proportional to 89,742.88, 134,616.40 and 42,944.32

Step by Step Solution

1. Step 1: Write the proportion equation
   89,742.88 : 134,616.40 = 42,944.32 : x
2. Step 2: Convert to fraction form
   89,742.88/134,616.40 = 42,944.32/x
3. Step 3: Cross multiply
   89,742.88x = 134,616.40 × 42,944.32
4. Step 4: Simplify right side
   89,742.88x = 5,781,009,758.85
5. Step 5: Solve for x
   x = 5,781,009,758.85/89,742.88
6. Step 6: Final answer
   x = 64,417.48