Finding the Fourth Proportional to 37,388.16, 56,076.30 and 12,426.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,388.16 : 56,076.30 = 12,426.12 : x
2. Step 2: Convert to fraction form
   37,388.16/56,076.30 = 12,426.12/x
3. Step 3: Cross multiply
   37,388.16x = 56,076.30 × 12,426.12
4. Step 4: Simplify right side
   37,388.16x = 696,810,832.96
5. Step 5: Solve for x
   x = 696,810,832.96/37,388.16
6. Step 6: Final answer
   x = 18,637.21