Finding the Fourth Proportional to 14,118.93, 21,173.94 and 5,111.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,118.93 : 21,173.94 = 5,111.88 : x
2. Step 2: Convert to fraction form
   14,118.93/21,173.94 = 5,111.88/x
3. Step 3: Cross multiply
   14,118.93x = 21,173.94 × 5,111.88
4. Step 4: Simplify right side
   14,118.93x = 108,238,640.41
5. Step 5: Solve for x
   x = 108,238,640.41/14,118.93
6. Step 6: Final answer
   x = 7,666.21