Finding the Fourth Proportional to 7,870.41, 10,861.47 and 4,333.77

Step by Step Solution

1. Step 1: Write the proportion equation
   7,870.41 : 10,861.47 = 4,333.77 : x
2. Step 2: Convert to fraction form
   7,870.41/10,861.47 = 4,333.77/x
3. Step 3: Cross multiply
   7,870.41x = 10,861.47 × 4,333.77
4. Step 4: Simplify right side
   7,870.41x = 47,071,112.84
5. Step 5: Solve for x
   x = 47,071,112.84/7,870.41
6. Step 6: Final answer
   x = 5,980.77