Finding the Fourth Proportional to 89,665.20, 134,440.20 and 37,095.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,665.20 : 134,440.20 = 37,095.60 : x
2. Step 2: Convert to fraction form
   89,665.20/134,440.20 = 37,095.60/x
3. Step 3: Cross multiply
   89,665.20x = 134,440.20 × 37,095.60
4. Step 4: Simplify right side
   89,665.20x = 4,987,139,883.12
5. Step 5: Solve for x
   x = 4,987,139,883.12/89,665.20
6. Step 6: Final answer
   x = 55,619.57