Finding the Fourth Proportional to 22,514.05, 31,068.02 and 12,947.21

Step by Step Solution

1. Step 1: Write the proportion equation
   22,514.05 : 31,068.02 = 12,947.21 : x
2. Step 2: Convert to fraction form
   22,514.05/31,068.02 = 12,947.21/x
3. Step 3: Cross multiply
   22,514.05x = 31,068.02 × 12,947.21
4. Step 4: Simplify right side
   22,514.05x = 402,244,172.76
5. Step 5: Solve for x
   x = 402,244,172.76/22,514.05
6. Step 6: Final answer
   x = 17,866.36