Finding the Fourth Proportional to 12,030.32, 16,602.72 and 6,724.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,030.32 : 16,602.72 = 6,724.80 : x
2. Step 2: Convert to fraction form
   12,030.32/16,602.72 = 6,724.80/x
3. Step 3: Cross multiply
   12,030.32x = 16,602.72 × 6,724.80
4. Step 4: Simplify right side
   12,030.32x = 111,649,971.46
5. Step 5: Solve for x
   x = 111,649,971.46/12,030.32
6. Step 6: Final answer
   x = 9,280.72