Finding the Fourth Proportional to 23,138.53, 31,931.82 and 13,068.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,138.53 : 31,931.82 = 13,068.48 : x
2. Step 2: Convert to fraction form
   23,138.53/31,931.82 = 13,068.48/x
3. Step 3: Cross multiply
   23,138.53x = 31,931.82 × 13,068.48
4. Step 4: Simplify right side
   23,138.53x = 417,300,191.37
5. Step 5: Solve for x
   x = 417,300,191.37/23,138.53
6. Step 6: Final answer
   x = 18,034.86