Finding the Fourth Proportional to 11,131.84, 15,345.58 and 8,474.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.84 : 15,345.58 = 8,474.62 : x
2. Step 2: Convert to fraction form
   11,131.84/15,345.58 = 8,474.62/x
3. Step 3: Cross multiply
   11,131.84x = 15,345.58 × 8,474.62
4. Step 4: Simplify right side
   11,131.84x = 130,047,959.18
5. Step 5: Solve for x
   x = 130,047,959.18/11,131.84
6. Step 6: Final answer
   x = 11,682.52