Finding the Fourth Proportional to 23,025.47, 31,776.03 and 12,953.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,025.47 : 31,776.03 = 12,953.79 : x
2. Step 2: Convert to fraction form
   23,025.47/31,776.03 = 12,953.79/x
3. Step 3: Cross multiply
   23,025.47x = 31,776.03 × 12,953.79
4. Step 4: Simplify right side
   23,025.47x = 411,620,019.65
5. Step 5: Solve for x
   x = 411,620,019.65/23,025.47
6. Step 6: Final answer
   x = 17,876.73