Finding the Fourth Proportional to 23,077.98, 31,852.17 and 13,518.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,077.98 : 31,852.17 = 13,518.90 : x
2. Step 2: Convert to fraction form
   23,077.98/31,852.17 = 13,518.90/x
3. Step 3: Cross multiply
   23,077.98x = 31,852.17 × 13,518.90
4. Step 4: Simplify right side
   23,077.98x = 430,606,301.01
5. Step 5: Solve for x
   x = 430,606,301.01/23,077.98
6. Step 6: Final answer
   x = 18,658.75