Finding the Fourth Proportional to 10,312.77, 15,471.10 and 3,556.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,312.77 : 15,471.10 = 3,556.56 : x
2. Step 2: Convert to fraction form
   10,312.77/15,471.10 = 3,556.56/x
3. Step 3: Cross multiply
   10,312.77x = 15,471.10 × 3,556.56
4. Step 4: Simplify right side
   10,312.77x = 55,023,870.85
5. Step 5: Solve for x
   x = 55,023,870.85/10,312.77
6. Step 6: Final answer
   x = 5,335.51