Finding the Fourth Proportional to 10,667.90, 14,721.59 and 5,887.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.90 : 14,721.59 = 5,887.88 : x
2. Step 2: Convert to fraction form
   10,667.90/14,721.59 = 5,887.88/x
3. Step 3: Cross multiply
   10,667.90x = 14,721.59 × 5,887.88
4. Step 4: Simplify right side
   10,667.90x = 86,678,925.89
5. Step 5: Solve for x
   x = 86,678,925.89/10,667.90
6. Step 6: Final answer
   x = 8,125.21