Finding the Fourth Proportional to 37,402.49, 56,082.68 and 12,429.18

Step by Step Solution

1. Step 1: Write the proportion equation
   37,402.49 : 56,082.68 = 12,429.18 : x
2. Step 2: Convert to fraction form
   37,402.49/56,082.68 = 12,429.18/x
3. Step 3: Cross multiply
   37,402.49x = 56,082.68 × 12,429.18
4. Step 4: Simplify right side
   37,402.49x = 697,061,709.07
5. Step 5: Solve for x
   x = 697,061,709.07/37,402.49
6. Step 6: Final answer
   x = 18,636.77