Finding the Fourth Proportional to 11,141.48, 15,380.34 and 9,623

Step by Step Solution

1. Step 1: Write the proportion equation
   11,141.48 : 15,380.34 = 9,623 : x
2. Step 2: Convert to fraction form
   11,141.48/15,380.34 = 9,623/x
3. Step 3: Cross multiply
   11,141.48x = 15,380.34 × 9,623
4. Step 4: Simplify right side
   11,141.48x = 148,005,011.82
5. Step 5: Solve for x
   x = 148,005,011.82/11,141.48
6. Step 6: Final answer
   x = 13,284.14