Finding the Fourth Proportional to 6,075.78, 8,385.06 and 3,387.87

Step by Step Solution

1. Step 1: Write the proportion equation
   6,075.78 : 8,385.06 = 3,387.87 : x
2. Step 2: Convert to fraction form
   6,075.78/8,385.06 = 3,387.87/x
3. Step 3: Cross multiply
   6,075.78x = 8,385.06 × 3,387.87
4. Step 4: Simplify right side
   6,075.78x = 28,407,458.52
5. Step 5: Solve for x
   x = 28,407,458.52/6,075.78
6. Step 6: Final answer
   x = 4,675.53