Finding the Fourth Proportional to 7,870.52, 10,861.80 and 4,334.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.52 : 10,861.80 = 4,334.51 : x
2. Step 2: Convert to fraction form
   7,870.52/10,861.80 = 4,334.51/x
3. Step 3: Cross multiply
   7,870.52x = 10,861.80 × 4,334.51
4. Step 4: Simplify right side
   7,870.52x = 47,080,580.72
5. Step 5: Solve for x
   x = 47,080,580.72/7,870.52
6. Step 6: Final answer
   x = 5,981.89