Finding the Fourth Proportional to 12,877.62, 19,314.90 and 3,518.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,877.62 : 19,314.90 = 3,518.34 : x
2. Step 2: Convert to fraction form
   12,877.62/19,314.90 = 3,518.34/x
3. Step 3: Cross multiply
   12,877.62x = 19,314.90 × 3,518.34
4. Step 4: Simplify right side
   12,877.62x = 67,956,385.27
5. Step 5: Solve for x
   x = 67,956,385.27/12,877.62
6. Step 6: Final answer
   x = 5,277.09