Finding the Fourth Proportional to 11,222.64, 16,830.72 and 3,432.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,222.64 : 16,830.72 = 3,432.06 : x
2. Step 2: Convert to fraction form
   11,222.64/16,830.72 = 3,432.06/x
3. Step 3: Cross multiply
   11,222.64x = 16,830.72 × 3,432.06
4. Step 4: Simplify right side
   11,222.64x = 57,764,040.88
5. Step 5: Solve for x
   x = 57,764,040.88/11,222.64
6. Step 6: Final answer
   x = 5,147.10