Finding the Fourth Proportional to 11,407.47, 17,111.25 and 3,509.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,407.47 : 17,111.25 = 3,509.93 : x
2. Step 2: Convert to fraction form
   11,407.47/17,111.25 = 3,509.93/x
3. Step 3: Cross multiply
   11,407.47x = 17,111.25 × 3,509.93
4. Step 4: Simplify right side
   11,407.47x = 60,059,332.49
5. Step 5: Solve for x
   x = 60,059,332.49/11,407.47
6. Step 6: Final answer
   x = 5,264.91