Finding the Fourth Proportional to 13,081.95, 18,052.71 and 7,417.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.95 : 18,052.71 = 7,417.22 : x
2. Step 2: Convert to fraction form
   13,081.95/18,052.71 = 7,417.22/x
3. Step 3: Cross multiply
   13,081.95x = 18,052.71 × 7,417.22
4. Step 4: Simplify right side
   13,081.95x = 133,900,966.80
5. Step 5: Solve for x
   x = 133,900,966.80/13,081.95
6. Step 6: Final answer
   x = 10,235.55