Finding the Fourth Proportional to 22,940.66, 31,656.12 and 12,867.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,940.66 : 31,656.12 = 12,867.50 : x
2. Step 2: Convert to fraction form
   22,940.66/31,656.12 = 12,867.50/x
3. Step 3: Cross multiply
   22,940.66x = 31,656.12 × 12,867.50
4. Step 4: Simplify right side
   22,940.66x = 407,335,124.10
5. Step 5: Solve for x
   x = 407,335,124.10/22,940.66
6. Step 6: Final answer
   x = 17,756.03