Finding the Fourth Proportional to 13,554.50, 18,705.22 and 7,587.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,554.50 : 18,705.22 = 7,587.59 : x
2. Step 2: Convert to fraction form
   13,554.50/18,705.22 = 7,587.59/x
3. Step 3: Cross multiply
   13,554.50x = 18,705.22 × 7,587.59
4. Step 4: Simplify right side
   13,554.50x = 141,927,540.22
5. Step 5: Solve for x
   x = 141,927,540.22/13,554.50
6. Step 6: Final answer
   x = 10,470.88