Finding the Fourth Proportional to 7,473.05, 10,312.83 and 4,115.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,473.05 : 10,312.83 = 4,115.78 : x
2. Step 2: Convert to fraction form
   7,473.05/10,312.83 = 4,115.78/x
3. Step 3: Cross multiply
   7,473.05x = 10,312.83 × 4,115.78
4. Step 4: Simplify right side
   7,473.05x = 42,445,339.46
5. Step 5: Solve for x
   x = 42,445,339.46/7,473.05
6. Step 6: Final answer
   x = 5,679.79