Finding the Fourth Proportional to 35,877.99, 53,787.82 and 12,520.83

Step by Step Solution

1. Step 1: Write the proportion equation
   35,877.99 : 53,787.82 = 12,520.83 : x
2. Step 2: Convert to fraction form
   35,877.99/53,787.82 = 12,520.83/x
3. Step 3: Cross multiply
   35,877.99x = 53,787.82 × 12,520.83
4. Step 4: Simplify right side
   35,877.99x = 673,468,150.29
5. Step 5: Solve for x
   x = 673,468,150.29/35,877.99
6. Step 6: Final answer
   x = 18,771.07