Finding the Fourth Proportional to 11,430.72, 17,146.32 and 3,641.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,430.72 : 17,146.32 = 3,641.76 : x
2. Step 2: Convert to fraction form
   11,430.72/17,146.32 = 3,641.76/x
3. Step 3: Cross multiply
   11,430.72x = 17,146.32 × 3,641.76
4. Step 4: Simplify right side
   11,430.72x = 62,442,782.32
5. Step 5: Solve for x
   x = 62,442,782.32/11,430.72
6. Step 6: Final answer
   x = 5,462.72