Finding the Fourth Proportional to 7,870.16, 10,860.42 and 4,332.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.16 : 10,860.42 = 4,332.69 : x
2. Step 2: Convert to fraction form
   7,870.16/10,860.42 = 4,332.69/x
3. Step 3: Cross multiply
   7,870.16x = 10,860.42 × 4,332.69
4. Step 4: Simplify right side
   7,870.16x = 47,054,833.13
5. Step 5: Solve for x
   x = 47,054,833.13/7,870.16
6. Step 6: Final answer
   x = 5,978.89