Finding the Fourth Proportional to 22,142.30, 30,555.36 and 12,070.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142.30 : 30,555.36 = 12,070.76 : x
2. Step 2: Convert to fraction form
   22,142.30/30,555.36 = 12,070.76/x
3. Step 3: Cross multiply
   22,142.30x = 30,555.36 × 12,070.76
4. Step 4: Simplify right side
   22,142.30x = 368,826,264.50
5. Step 5: Solve for x
   x = 368,826,264.50/22,142.30
6. Step 6: Final answer
   x = 16,657.09