Finding the Fourth Proportional to 23,047.07, 31,807.98 and 12,977.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,047.07 : 31,807.98 = 12,977.47 : x
2. Step 2: Convert to fraction form
   23,047.07/31,807.98 = 12,977.47/x
3. Step 3: Cross multiply
   23,047.07x = 31,807.98 × 12,977.47
4. Step 4: Simplify right side
   23,047.07x = 412,787,002.36
5. Step 5: Solve for x
   x = 412,787,002.36/23,047.07
6. Step 6: Final answer
   x = 17,910.61