Finding the Fourth Proportional to 12,468.34, 17,190.75 and 7,984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,468.34 : 17,190.75 = 7,984.72 : x
2. Step 2: Convert to fraction form
   12,468.34/17,190.75 = 7,984.72/x
3. Step 3: Cross multiply
   12,468.34x = 17,190.75 × 7,984.72
4. Step 4: Simplify right side
   12,468.34x = 137,263,331.86
5. Step 5: Solve for x
   x = 137,263,331.86/12,468.34
6. Step 6: Final answer
   x = 11,008.95