Finding the Fourth Proportional to 19,150.96, 28,737.60 and 8,056.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,150.96 : 28,737.60 = 8,056.88 : x
2. Step 2: Convert to fraction form
   19,150.96/28,737.60 = 8,056.88/x
3. Step 3: Cross multiply
   19,150.96x = 28,737.60 × 8,056.88
4. Step 4: Simplify right side
   19,150.96x = 231,535,394.69
5. Step 5: Solve for x
   x = 231,535,394.69/19,150.96
6. Step 6: Final answer
   x = 12,090.02