Finding the Fourth Proportional to 10,129.01, 15,200.32 and 3,555.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,129.01 : 15,200.32 = 3,555.22 : x
2. Step 2: Convert to fraction form
   10,129.01/15,200.32 = 3,555.22/x
3. Step 3: Cross multiply
   10,129.01x = 15,200.32 × 3,555.22
4. Step 4: Simplify right side
   10,129.01x = 54,040,481.67
5. Step 5: Solve for x
   x = 54,040,481.67/10,129.01
6. Step 6: Final answer
   x = 5,335.22