Finding the Fourth Proportional to 10,875.20, 16,307.64 and 3,477.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.20 : 16,307.64 = 3,477.92 : x
2. Step 2: Convert to fraction form
   10,875.20/16,307.64 = 3,477.92/x
3. Step 3: Cross multiply
   10,875.20x = 16,307.64 × 3,477.92
4. Step 4: Simplify right side
   10,875.20x = 56,716,667.31
5. Step 5: Solve for x
   x = 56,716,667.31/10,875.20
6. Step 6: Final answer
   x = 5,215.23