Finding the Fourth Proportional to 37,597.17, 56,396.76 and 12,638.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,597.17 : 56,396.76 = 12,638.10 : x
2. Step 2: Convert to fraction form
   37,597.17/56,396.76 = 12,638.10/x
3. Step 3: Cross multiply
   37,597.17x = 56,396.76 × 12,638.10
4. Step 4: Simplify right side
   37,597.17x = 712,747,892.56
5. Step 5: Solve for x
   x = 712,747,892.56/37,597.17
6. Step 6: Final answer
   x = 18,957.49