Finding the Fourth Proportional to 11,326.32, 16,983.72 and 5,166

Step by Step Solution

1. Step 1: Write the proportion equation
   11,326.32 : 16,983.72 = 5,166 : x
2. Step 2: Convert to fraction form
   11,326.32/16,983.72 = 5,166/x
3. Step 3: Cross multiply
   11,326.32x = 16,983.72 × 5,166
4. Step 4: Simplify right side
   11,326.32x = 87,737,897.52
5. Step 5: Solve for x
   x = 87,737,897.52/11,326.32
6. Step 6: Final answer
   x = 7,746.37