Finding the Fourth Proportional to 55,103.99, 82,663.78 and 17,655.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,103.99 : 82,663.78 = 17,655.31 : x
2. Step 2: Convert to fraction form
   55,103.99/82,663.78 = 17,655.31/x
3. Step 3: Cross multiply
   55,103.99x = 82,663.78 × 17,655.31
4. Step 4: Simplify right side
   55,103.99x = 1,459,454,661.67
5. Step 5: Solve for x
   x = 1,459,454,661.67/55,103.99
6. Step 6: Final answer
   x = 26,485.46