Finding the Fourth Proportional to 28,096.56, 42,156.18 and 12,503.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,096.56 : 42,156.18 = 12,503.52 : x
2. Step 2: Convert to fraction form
   28,096.56/42,156.18 = 12,503.52/x
3. Step 3: Cross multiply
   28,096.56x = 42,156.18 × 12,503.52
4. Step 4: Simplify right side
   28,096.56x = 527,100,639.75
5. Step 5: Solve for x
   x = 527,100,639.75/28,096.56
6. Step 6: Final answer
   x = 18,760.33