Finding the Fourth Proportional to 28,055.88, 42,139.86 and 17,544.60

Step by Step Solution

1. Step 1: Write the proportion equation
   28,055.88 : 42,139.86 = 17,544.60 : x
2. Step 2: Convert to fraction form
   28,055.88/42,139.86 = 17,544.60/x
3. Step 3: Cross multiply
   28,055.88x = 42,139.86 × 17,544.60
4. Step 4: Simplify right side
   28,055.88x = 739,326,987.76
5. Step 5: Solve for x
   x = 739,326,987.76/28,055.88
6. Step 6: Final answer
   x = 26,351.94