Finding the Fourth Proportional to 7,870.32, 10,861.32 and 4,333.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.32 : 10,861.32 = 4,333.80 : x
2. Step 2: Convert to fraction form
   7,870.32/10,861.32 = 4,333.80/x
3. Step 3: Cross multiply
   7,870.32x = 10,861.32 × 4,333.80
4. Step 4: Simplify right side
   7,870.32x = 47,070,788.62
5. Step 5: Solve for x
   x = 47,070,788.62/7,870.32
6. Step 6: Final answer
   x = 5,980.80