Finding the Fourth Proportional to 7,870.57, 10,860.28 and 4,334.01

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.57 : 10,860.28 = 4,334.01 : x
2. Step 2: Convert to fraction form
   7,870.57/10,860.28 = 4,334.01/x
3. Step 3: Cross multiply
   7,870.57x = 10,860.28 × 4,334.01
4. Step 4: Simplify right side
   7,870.57x = 47,068,510.56
5. Step 5: Solve for x
   x = 47,068,510.56/7,870.57
6. Step 6: Final answer
   x = 5,980.32