Finding the Fourth Proportional to 14,978.67, 22,472.81 and 7,188.03

Step by Step Solution

1. Step 1: Write the proportion equation
   14,978.67 : 22,472.81 = 7,188.03 : x
2. Step 2: Convert to fraction form
   14,978.67/22,472.81 = 7,188.03/x
3. Step 3: Cross multiply
   14,978.67x = 22,472.81 × 7,188.03
4. Step 4: Simplify right side
   14,978.67x = 161,535,196.52
5. Step 5: Solve for x
   x = 161,535,196.52/14,978.67
6. Step 6: Final answer
   x = 10,784.35