Finding the Fourth Proportional to 10,819.57, 14,931.01 and 5,851.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,819.57 : 14,931.01 = 5,851.57 : x
2. Step 2: Convert to fraction form
   10,819.57/14,931.01 = 5,851.57/x
3. Step 3: Cross multiply
   10,819.57x = 14,931.01 × 5,851.57
4. Step 4: Simplify right side
   10,819.57x = 87,369,775.53
5. Step 5: Solve for x
   x = 87,369,775.53/10,819.57
6. Step 6: Final answer
   x = 8,075.17