Finding the Fourth Proportional to 89,918.76, 134,938.32 and 37,328.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,918.76 : 134,938.32 = 37,328.28 : x
2. Step 2: Convert to fraction form
   89,918.76/134,938.32 = 37,328.28/x
3. Step 3: Cross multiply
   89,918.76x = 134,938.32 × 37,328.28
4. Step 4: Simplify right side
   89,918.76x = 5,037,015,391.69
5. Step 5: Solve for x
   x = 5,037,015,391.69/89,918.76
6. Step 6: Final answer
   x = 56,017.40