Finding the Fourth Proportional to 8,105.42, 12,157.49 and 2,558.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.42 : 12,157.49 = 2,558.93 : x
2. Step 2: Convert to fraction form
   8,105.42/12,157.49 = 2,558.93/x
3. Step 3: Cross multiply
   8,105.42x = 12,157.49 × 2,558.93
4. Step 4: Simplify right side
   8,105.42x = 31,110,111.50
5. Step 5: Solve for x
   x = 31,110,111.50/8,105.42
6. Step 6: Final answer
   x = 3,838.19