Finding the Fourth Proportional to 7,557.83, 10,429.61 and 4,200.65

Step by Step Solution

1. Step 1: Write the proportion equation
   7,557.83 : 10,429.61 = 4,200.65 : x
2. Step 2: Convert to fraction form
   7,557.83/10,429.61 = 4,200.65/x
3. Step 3: Cross multiply
   7,557.83x = 10,429.61 × 4,200.65
4. Step 4: Simplify right side
   7,557.83x = 43,811,068.10
5. Step 5: Solve for x
   x = 43,811,068.10/7,557.83
6. Step 6: Final answer
   x = 5,796.78