Finding the Fourth Proportional to 22,948.82, 31,667.43 and 12,875.90

Step by Step Solution

1. Step 1: Write the proportion equation
   22,948.82 : 31,667.43 = 12,875.90 : x
2. Step 2: Convert to fraction form
   22,948.82/31,667.43 = 12,875.90/x
3. Step 3: Cross multiply
   22,948.82x = 31,667.43 × 12,875.90
4. Step 4: Simplify right side
   22,948.82x = 407,746,661.94
5. Step 5: Solve for x
   x = 407,746,661.94/22,948.82
6. Step 6: Final answer
   x = 17,767.65