Finding the Fourth Proportional to 9,030.61, 13,542.55 and 3,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,030.61 : 13,542.55 = 3,105.82 : x
2. Step 2: Convert to fraction form
   9,030.61/13,542.55 = 3,105.82/x
3. Step 3: Cross multiply
   9,030.61x = 13,542.55 × 3,105.82
4. Step 4: Simplify right side
   9,030.61x = 42,060,722.64
5. Step 5: Solve for x
   x = 42,060,722.64/9,030.61
6. Step 6: Final answer
   x = 4,657.57