Finding the Fourth Proportional to 37,389.42, 56,063.12 and 12,416.10

Step by Step Solution

1. Step 1: Write the proportion equation
   37,389.42 : 56,063.12 = 12,416.10 : x
2. Step 2: Convert to fraction form
   37,389.42/56,063.12 = 12,416.10/x
3. Step 3: Cross multiply
   37,389.42x = 56,063.12 × 12,416.10
4. Step 4: Simplify right side
   37,389.42x = 696,085,242.15
5. Step 5: Solve for x
   x = 696,085,242.15/37,389.42
6. Step 6: Final answer
   x = 18,617.17