Finding the Fourth Proportional to 10,638.42, 14,681.88 and 5,923.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,638.42 : 14,681.88 = 5,923.05 : x
2. Step 2: Convert to fraction form
   10,638.42/14,681.88 = 5,923.05/x
3. Step 3: Cross multiply
   10,638.42x = 14,681.88 × 5,923.05
4. Step 4: Simplify right side
   10,638.42x = 86,961,509.33
5. Step 5: Solve for x
   x = 86,961,509.33/10,638.42
6. Step 6: Final answer
   x = 8,174.29