Finding the Fourth Proportional to 89,610.18, 134,445.52 and 39,683.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,610.18 : 134,445.52 = 39,683.40 : x
2. Step 2: Convert to fraction form
   89,610.18/134,445.52 = 39,683.40/x
3. Step 3: Cross multiply
   89,610.18x = 134,445.52 × 39,683.40
4. Step 4: Simplify right side
   89,610.18x = 5,335,255,348.37
5. Step 5: Solve for x
   x = 5,335,255,348.37/89,610.18
6. Step 6: Final answer
   x = 59,538.50