Finding the Fourth Proportional to 14,118, 21,182.76 and 7,188.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,118 : 21,182.76 = 7,188.72 : x
2. Step 2: Convert to fraction form
   14,118/21,182.76 = 7,188.72/x
3. Step 3: Cross multiply
   14,118x = 21,182.76 × 7,188.72
4. Step 4: Simplify right side
   14,118x = 152,276,930.47
5. Step 5: Solve for x
   x = 152,276,930.47/14,118
6. Step 6: Final answer
   x = 10,786.01