Finding the Fourth Proportional to 13,558.42, 18,708.46 and 7,590.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,558.42 : 18,708.46 = 7,590.34 : x
2. Step 2: Convert to fraction form
   13,558.42/18,708.46 = 7,590.34/x
3. Step 3: Cross multiply
   13,558.42x = 18,708.46 × 7,590.34
4. Step 4: Simplify right side
   13,558.42x = 142,003,572.28
5. Step 5: Solve for x
   x = 142,003,572.28/13,558.42
6. Step 6: Final answer
   x = 10,473.46