Finding the Fourth Proportional to 11,680.55, 16,116.69 and 7,430.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,680.55 : 16,116.69 = 7,430.06 : x
2. Step 2: Convert to fraction form
   11,680.55/16,116.69 = 7,430.06/x
3. Step 3: Cross multiply
   11,680.55x = 16,116.69 × 7,430.06
4. Step 4: Simplify right side
   11,680.55x = 119,748,041.86
5. Step 5: Solve for x
   x = 119,748,041.86/11,680.55
6. Step 6: Final answer
   x = 10,251.92