Finding the Fourth Proportional to 13,559.23, 18,712.89 and 7,590.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,559.23 : 18,712.89 = 7,590.82 : x
2. Step 2: Convert to fraction form
   13,559.23/18,712.89 = 7,590.82/x
3. Step 3: Cross multiply
   13,559.23x = 18,712.89 × 7,590.82
4. Step 4: Simplify right side
   13,559.23x = 142,046,179.67
5. Step 5: Solve for x
   x = 142,046,179.67/13,559.23
6. Step 6: Final answer
   x = 10,475.98