Finding the Fourth Proportional to 22,946.33, 31,666.42 and 12,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,946.33 : 31,666.42 = 12,875.50 : x
2. Step 2: Convert to fraction form
   22,946.33/31,666.42 = 12,875.50/x
3. Step 3: Cross multiply
   22,946.33x = 31,666.42 × 12,875.50
4. Step 4: Simplify right side
   22,946.33x = 407,721,046.39
5. Step 5: Solve for x
   x = 407,721,046.39/22,946.33
6. Step 6: Final answer
   x = 17,768.46