Finding the Fourth Proportional to 37,540.72, 56,271.85 and 12,560.22

Step by Step Solution

1. Step 1: Write the proportion equation
   37,540.72 : 56,271.85 = 12,560.22 : x
2. Step 2: Convert to fraction form
   37,540.72/56,271.85 = 12,560.22/x
3. Step 3: Cross multiply
   37,540.72x = 56,271.85 × 12,560.22
4. Step 4: Simplify right side
   37,540.72x = 706,786,815.81
5. Step 5: Solve for x
   x = 706,786,815.81/37,540.72
6. Step 6: Final answer
   x = 18,827.20