Finding the Fourth Proportional to 10,667.16, 14,720.95 and 5,887.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.16 : 14,720.95 = 5,887.20 : x
2. Step 2: Convert to fraction form
   10,667.16/14,720.95 = 5,887.20/x
3. Step 3: Cross multiply
   10,667.16x = 14,720.95 × 5,887.20
4. Step 4: Simplify right side
   10,667.16x = 86,665,176.84
5. Step 5: Solve for x
   x = 86,665,176.84/10,667.16
6. Step 6: Final answer
   x = 8,124.48