Finding the Fourth Proportional to 11,068.22, 16,561.32 and 8,870.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,068.22 : 16,561.32 = 8,870.28 : x
2. Step 2: Convert to fraction form
   11,068.22/16,561.32 = 8,870.28/x
3. Step 3: Cross multiply
   11,068.22x = 16,561.32 × 8,870.28
4. Step 4: Simplify right side
   11,068.22x = 146,903,545.57
5. Step 5: Solve for x
   x = 146,903,545.57/11,068.22
6. Step 6: Final answer
   x = 13,272.55