Finding the Fourth Proportional to 13,055.64, 18,016.83 and 7,087.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,055.64 : 18,016.83 = 7,087.32 : x
2. Step 2: Convert to fraction form
   13,055.64/18,016.83 = 7,087.32/x
3. Step 3: Cross multiply
   13,055.64x = 18,016.83 × 7,087.32
4. Step 4: Simplify right side
   13,055.64x = 127,690,931.79
5. Step 5: Solve for x
   x = 127,690,931.79/13,055.64
6. Step 6: Final answer
   x = 9,780.52