Finding the Fourth Proportional to 11,973.15, 16,530.39 and 7,726.32

Step by Step Solution

1. Step 1: Write the proportion equation
   11,973.15 : 16,530.39 = 7,726.32 : x
2. Step 2: Convert to fraction form
   11,973.15/16,530.39 = 7,726.32/x
3. Step 3: Cross multiply
   11,973.15x = 16,530.39 × 7,726.32
4. Step 4: Simplify right side
   11,973.15x = 127,719,082.86
5. Step 5: Solve for x
   x = 127,719,082.86/11,973.15
6. Step 6: Final answer
   x = 10,667.12