Finding the Fourth Proportional to 89,610.48, 134,444.88 and 42,867

Step by Step Solution

1. Step 1: Write the proportion equation
   89,610.48 : 134,444.88 = 42,867 : x
2. Step 2: Convert to fraction form
   89,610.48/134,444.88 = 42,867/x
3. Step 3: Cross multiply
   89,610.48x = 134,444.88 × 42,867
4. Step 4: Simplify right side
   89,610.48x = 5,763,248,670.96
5. Step 5: Solve for x
   x = 5,763,248,670.96/89,610.48
6. Step 6: Final answer
   x = 64,314.45