Finding the Fourth Proportional to 23,042.55, 31,796.25 and 12,970.81

Step by Step Solution

1. Step 1: Write the proportion equation
   23,042.55 : 31,796.25 = 12,970.81 : x
2. Step 2: Convert to fraction form
   23,042.55/31,796.25 = 12,970.81/x
3. Step 3: Cross multiply
   23,042.55x = 31,796.25 × 12,970.81
4. Step 4: Simplify right side
   23,042.55x = 412,423,019.14
5. Step 5: Solve for x
   x = 412,423,019.14/23,042.55
6. Step 6: Final answer
   x = 17,898.32