Finding the Fourth Proportional to 11,947.47, 17,915.40 and 3,625.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,947.47 : 17,915.40 = 3,625.98 : x
2. Step 2: Convert to fraction form
   11,947.47/17,915.40 = 3,625.98/x
3. Step 3: Cross multiply
   11,947.47x = 17,915.40 × 3,625.98
4. Step 4: Simplify right side
   11,947.47x = 64,960,882.09
5. Step 5: Solve for x
   x = 64,960,882.09/11,947.47
6. Step 6: Final answer
   x = 5,437.21