Finding the Fourth Proportional to 27,155.52, 37,475.46 and 15,216.12

Step by Step Solution

1. Step 1: Write the proportion equation
   27,155.52 : 37,475.46 = 15,216.12 : x
2. Step 2: Convert to fraction form
   27,155.52/37,475.46 = 15,216.12/x
3. Step 3: Cross multiply
   27,155.52x = 37,475.46 × 15,216.12
4. Step 4: Simplify right side
   27,155.52x = 570,231,096.42
5. Step 5: Solve for x
   x = 570,231,096.42/27,155.52
6. Step 6: Final answer
   x = 20,998.72