Finding the Fourth Proportional to 5,870.02, 8,100.66 and 3,511.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.02 : 8,100.66 = 3,511.57 : x
2. Step 2: Convert to fraction form
   5,870.02/8,100.66 = 3,511.57/x
3. Step 3: Cross multiply
   5,870.02x = 8,100.66 × 3,511.57
4. Step 4: Simplify right side
   5,870.02x = 28,446,034.64
5. Step 5: Solve for x
   x = 28,446,034.64/5,870.02
6. Step 6: Final answer
   x = 4,845.99