Finding the Fourth Proportional to 11,690.56, 17,531.52 and 4,672.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,690.56 : 17,531.52 = 4,672.18 : x
2. Step 2: Convert to fraction form
   11,690.56/17,531.52 = 4,672.18/x
3. Step 3: Cross multiply
   11,690.56x = 17,531.52 × 4,672.18
4. Step 4: Simplify right side
   11,690.56x = 81,910,417.11
5. Step 5: Solve for x
   x = 81,910,417.11/11,690.56
6. Step 6: Final answer
   x = 7,006.54