Finding the Fourth Proportional to 89,693.20, 134,482.20 and 37,123.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,693.20 : 134,482.20 = 37,123.60 : x
2. Step 2: Convert to fraction form
   89,693.20/134,482.20 = 37,123.60/x
3. Step 3: Cross multiply
   89,693.20x = 134,482.20 × 37,123.60
4. Step 4: Simplify right side
   89,693.20x = 4,992,463,399.92
5. Step 5: Solve for x
   x = 4,992,463,399.92/89,693.20
6. Step 6: Final answer
   x = 55,661.56