Finding the Fourth Proportional to 89,573.68, 134,233.35 and 42,170.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,573.68 : 134,233.35 = 42,170.86 : x
2. Step 2: Convert to fraction form
   89,573.68/134,233.35 = 42,170.86/x
3. Step 3: Cross multiply
   89,573.68x = 134,233.35 × 42,170.86
4. Step 4: Simplify right side
   89,573.68x = 5,660,735,810.18
5. Step 5: Solve for x
   x = 5,660,735,810.18/89,573.68
6. Step 6: Final answer
   x = 63,196.42