Finding the Fourth Proportional to 14,056.96, 19,400.40 and 8,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,056.96 : 19,400.40 = 8,086.72 : x
2. Step 2: Convert to fraction form
   14,056.96/19,400.40 = 8,086.72/x
3. Step 3: Cross multiply
   14,056.96x = 19,400.40 × 8,086.72
4. Step 4: Simplify right side
   14,056.96x = 156,885,602.69
5. Step 5: Solve for x
   x = 156,885,602.69/14,056.96
6. Step 6: Final answer
   x = 11,160.71