Finding the Fourth Proportional to 11,690.16, 16,123.28 and 7,498.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,690.16 : 16,123.28 = 7,498.80 : x
2. Step 2: Convert to fraction form
   11,690.16/16,123.28 = 7,498.80/x
3. Step 3: Cross multiply
   11,690.16x = 16,123.28 × 7,498.80
4. Step 4: Simplify right side
   11,690.16x = 120,905,252.06
5. Step 5: Solve for x
   x = 120,905,252.06/11,690.16
6. Step 6: Final answer
   x = 10,342.48