Finding the Fourth Proportional to 12,762.19, 19,123.75 and 8,586.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,762.19 : 19,123.75 = 8,586.73 : x
2. Step 2: Convert to fraction form
   12,762.19/19,123.75 = 8,586.73/x
3. Step 3: Cross multiply
   12,762.19x = 19,123.75 × 8,586.73
4. Step 4: Simplify right side
   12,762.19x = 164,210,434.90
5. Step 5: Solve for x
   x = 164,210,434.90/12,762.19
6. Step 6: Final answer
   x = 12,866.95