Finding the Fourth Proportional to 23,059.02, 31,821.12 and 12,988.46

Step by Step Solution

1. Step 1: Write the proportion equation
   23,059.02 : 31,821.12 = 12,988.46 : x
2. Step 2: Convert to fraction form
   23,059.02/31,821.12 = 12,988.46/x
3. Step 3: Cross multiply
   23,059.02x = 31,821.12 × 12,988.46
4. Step 4: Simplify right side
   23,059.02x = 413,307,185.17
5. Step 5: Solve for x
   x = 413,307,185.17/23,059.02
6. Step 6: Final answer
   x = 17,923.88