Finding the Fourth Proportional to 12,795.50, 19,195.72 and 4,477.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,795.50 : 19,195.72 = 4,477.88 : x
2. Step 2: Convert to fraction form
   12,795.50/19,195.72 = 4,477.88/x
3. Step 3: Cross multiply
   12,795.50x = 19,195.72 × 4,477.88
4. Step 4: Simplify right side
   12,795.50x = 85,956,167.47
5. Step 5: Solve for x
   x = 85,956,167.47/12,795.50
6. Step 6: Final answer
   x = 6,717.69