Finding the Fourth Proportional to 55,301.10, 76,314.78 and 32,640

Step by Step Solution

1. Step 1: Write the proportion equation
   55,301.10 : 76,314.78 = 32,640 : x
2. Step 2: Convert to fraction form
   55,301.10/76,314.78 = 32,640/x
3. Step 3: Cross multiply
   55,301.10x = 76,314.78 × 32,640
4. Step 4: Simplify right side
   55,301.10x = 2,490,914,419.20
5. Step 5: Solve for x
   x = 2,490,914,419.20/55,301.10
6. Step 6: Final answer
   x = 45,042.76