Finding the Fourth Proportional to 10,081.18, 13,912.06 and 5,605.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.18 : 13,912.06 = 5,605.22 : x
2. Step 2: Convert to fraction form
   10,081.18/13,912.06 = 5,605.22/x
3. Step 3: Cross multiply
   10,081.18x = 13,912.06 × 5,605.22
4. Step 4: Simplify right side
   10,081.18x = 77,980,156.95
5. Step 5: Solve for x
   x = 77,980,156.95/10,081.18
6. Step 6: Final answer
   x = 7,735.22