Finding the Fourth Proportional to 11,816.01, 17,632.55 and 10,507.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,816.01 : 17,632.55 = 10,507.05 : x
2. Step 2: Convert to fraction form
   11,816.01/17,632.55 = 10,507.05/x
3. Step 3: Cross multiply
   11,816.01x = 17,632.55 × 10,507.05
4. Step 4: Simplify right side
   11,816.01x = 185,266,110.75
5. Step 5: Solve for x
   x = 185,266,110.75/11,816.01
6. Step 6: Final answer
   x = 15,679.24