Finding the Fourth Proportional to 11,070.18, 16,606.22 and 3,172.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,070.18 : 16,606.22 = 3,172.72 : x
2. Step 2: Convert to fraction form
   11,070.18/16,606.22 = 3,172.72/x
3. Step 3: Cross multiply
   11,070.18x = 16,606.22 × 3,172.72
4. Step 4: Simplify right side
   11,070.18x = 52,686,870.45
5. Step 5: Solve for x
   x = 52,686,870.45/11,070.18
6. Step 6: Final answer
   x = 4,759.35