Finding the Fourth Proportional to 23,148.98, 31,945.47 and 12,538.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,148.98 : 31,945.47 = 12,538.82 : x
2. Step 2: Convert to fraction form
   23,148.98/31,945.47 = 12,538.82/x
3. Step 3: Cross multiply
   23,148.98x = 31,945.47 × 12,538.82
4. Step 4: Simplify right side
   23,148.98x = 400,558,498.15
5. Step 5: Solve for x
   x = 400,558,498.15/23,148.98
6. Step 6: Final answer
   x = 17,303.51