Finding the Fourth Proportional to 37,389.83, 56,072.61 and 12,423.17

Step by Step Solution

1. Step 1: Write the proportion equation
   37,389.83 : 56,072.61 = 12,423.17 : x
2. Step 2: Convert to fraction form
   37,389.83/56,072.61 = 12,423.17/x
3. Step 3: Cross multiply
   37,389.83x = 56,072.61 × 12,423.17
4. Step 4: Simplify right side
   37,389.83x = 696,599,504.26
5. Step 5: Solve for x
   x = 696,599,504.26/37,389.83
6. Step 6: Final answer
   x = 18,630.72