Finding the Fourth Proportional to 37,321.52, 55,981.40 and 15,128.96

Step by Step Solution

1. Step 1: Write the proportion equation
   37,321.52 : 55,981.40 = 15,128.96 : x
2. Step 2: Convert to fraction form
   37,321.52/55,981.40 = 15,128.96/x
3. Step 3: Cross multiply
   37,321.52x = 55,981.40 × 15,128.96
4. Step 4: Simplify right side
   37,321.52x = 846,940,361.34
5. Step 5: Solve for x
   x = 846,940,361.34/37,321.52
6. Step 6: Final answer
   x = 22,693.08