Finding the Fourth Proportional to 13,055.83, 18,017.18 and 7,087.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,055.83 : 18,017.18 = 7,087.56 : x
2. Step 2: Convert to fraction form
   13,055.83/18,017.18 = 7,087.56/x
3. Step 3: Cross multiply
   13,055.83x = 18,017.18 × 7,087.56
4. Step 4: Simplify right side
   13,055.83x = 127,697,844.28
5. Step 5: Solve for x
   x = 127,697,844.28/13,055.83
6. Step 6: Final answer
   x = 9,780.91