Finding the Fourth Proportional to 7,478.83, 10,320.66 and 4,075.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,478.83 : 10,320.66 = 4,075.89 : x
2. Step 2: Convert to fraction form
   7,478.83/10,320.66 = 4,075.89/x
3. Step 3: Cross multiply
   7,478.83x = 10,320.66 × 4,075.89
4. Step 4: Simplify right side
   7,478.83x = 42,065,836.18
5. Step 5: Solve for x
   x = 42,065,836.18/7,478.83
6. Step 6: Final answer
   x = 5,624.65