Finding the Fourth Proportional to 13,088.83, 18,055.42 and 7,985.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,088.83 : 18,055.42 = 7,985.83 : x
2. Step 2: Convert to fraction form
   13,088.83/18,055.42 = 7,985.83/x
3. Step 3: Cross multiply
   13,088.83x = 18,055.42 × 7,985.83
4. Step 4: Simplify right side
   13,088.83x = 144,187,514.70
5. Step 5: Solve for x
   x = 144,187,514.70/13,088.83
6. Step 6: Final answer
   x = 11,016.07