Finding the Fourth Proportional to 11,304.78, 15,602.43 and 10,806.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,304.78 : 15,602.43 = 10,806.42 : x
2. Step 2: Convert to fraction form
   11,304.78/15,602.43 = 10,806.42/x
3. Step 3: Cross multiply
   11,304.78x = 15,602.43 × 10,806.42
4. Step 4: Simplify right side
   11,304.78x = 168,606,411.60
5. Step 5: Solve for x
   x = 168,606,411.60/11,304.78
6. Step 6: Final answer
   x = 14,914.61