Finding the Fourth Proportional to 37,440.09, 56,156.28 and 12,477.45

Step by Step Solution

1. Step 1: Write the proportion equation
   37,440.09 : 56,156.28 = 12,477.45 : x
2. Step 2: Convert to fraction form
   37,440.09/56,156.28 = 12,477.45/x
3. Step 3: Cross multiply
   37,440.09x = 56,156.28 × 12,477.45
4. Step 4: Simplify right side
   37,440.09x = 700,687,175.89
5. Step 5: Solve for x
   x = 700,687,175.89/37,440.09
6. Step 6: Final answer
   x = 18,714.89