Finding the Fourth Proportional to 22,876.06, 31,566.40 and 12,803.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,876.06 : 31,566.40 = 12,803.10 : x
2. Step 2: Convert to fraction form
   22,876.06/31,566.40 = 12,803.10/x
3. Step 3: Cross multiply
   22,876.06x = 31,566.40 × 12,803.10
4. Step 4: Simplify right side
   22,876.06x = 404,147,775.84
5. Step 5: Solve for x
   x = 404,147,775.84/22,876.06
6. Step 6: Final answer
   x = 17,666.84