Finding the Fourth Proportional to 89,485.38, 134,275.32 and 39,600.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89,485.38 : 134,275.32 = 39,600.18 : x
2. Step 2: Convert to fraction form
   89,485.38/134,275.32 = 39,600.18/x
3. Step 3: Cross multiply
   89,485.38x = 134,275.32 × 39,600.18
4. Step 4: Simplify right side
   89,485.38x = 5,317,326,841.56
5. Step 5: Solve for x
   x = 5,317,326,841.56/89,485.38
6. Step 6: Final answer
   x = 59,421.18