Finding the Fourth Proportional to 11,368.56, 17,078.76 and 10,902

Step by Step Solution

1. Step 1: Write the proportion equation
   11,368.56 : 17,078.76 = 10,902 : x
2. Step 2: Convert to fraction form
   11,368.56/17,078.76 = 10,902/x
3. Step 3: Cross multiply
   11,368.56x = 17,078.76 × 10,902
4. Step 4: Simplify right side
   11,368.56x = 186,192,641.52
5. Step 5: Solve for x
   x = 186,192,641.52/11,368.56
6. Step 6: Final answer
   x = 16,377.86