Finding the Fourth Proportional to 7,477.52, 10,318.86 and 4,120.67

Step by Step Solution

1. Step 1: Write the proportion equation
   7,477.52 : 10,318.86 = 4,120.67 : x
2. Step 2: Convert to fraction form
   7,477.52/10,318.86 = 4,120.67/x
3. Step 3: Cross multiply
   7,477.52x = 10,318.86 × 4,120.67
4. Step 4: Simplify right side
   7,477.52x = 42,520,642.63
5. Step 5: Solve for x
   x = 42,520,642.63/7,477.52
6. Step 6: Final answer
   x = 5,686.47