Finding the Fourth Proportional to 14,404.60, 19,877.84 and 8,436.15

Step by Step Solution

1. Step 1: Write the proportion equation
   14,404.60 : 19,877.84 = 8,436.15 : x
2. Step 2: Convert to fraction form
   14,404.60/19,877.84 = 8,436.15/x
3. Step 3: Cross multiply
   14,404.60x = 19,877.84 × 8,436.15
4. Step 4: Simplify right side
   14,404.60x = 167,692,429.37
5. Step 5: Solve for x
   x = 167,692,429.37/14,404.60
6. Step 6: Final answer
   x = 11,641.59