Finding the Fourth Proportional to 22,970.34, 34,423.38 and 12,417.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,970.34 : 34,423.38 = 12,417.57 : x
2. Step 2: Convert to fraction form
   22,970.34/34,423.38 = 12,417.57/x
3. Step 3: Cross multiply
   22,970.34x = 34,423.38 × 12,417.57
4. Step 4: Simplify right side
   22,970.34x = 427,454,730.79
5. Step 5: Solve for x
   x = 427,454,730.79/22,970.34
6. Step 6: Final answer
   x = 18,608.99