Finding the Fourth Proportional to 10,667.39, 14,720.90 and 5,887.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.39 : 14,720.90 = 5,887.38 : x
2. Step 2: Convert to fraction form
   10,667.39/14,720.90 = 5,887.38/x
3. Step 3: Cross multiply
   10,667.39x = 14,720.90 × 5,887.38
4. Step 4: Simplify right side
   10,667.39x = 86,667,502.81
5. Step 5: Solve for x
   x = 86,667,502.81/10,667.39
6. Step 6: Final answer
   x = 8,124.53