Finding the Fourth Proportional to 12,773.39, 19,150.54 and 8,813.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,773.39 : 19,150.54 = 8,813.35 : x
2. Step 2: Convert to fraction form
   12,773.39/19,150.54 = 8,813.35/x
3. Step 3: Cross multiply
   12,773.39x = 19,150.54 × 8,813.35
4. Step 4: Simplify right side
   12,773.39x = 168,780,411.71
5. Step 5: Solve for x
   x = 168,780,411.71/12,773.39
6. Step 6: Final answer
   x = 13,213.44