Finding the Fourth Proportional to 22,417.34, 30,935.72 and 12,345.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,417.34 : 30,935.72 = 12,345.60 : x
2. Step 2: Convert to fraction form
   22,417.34/30,935.72 = 12,345.60/x
3. Step 3: Cross multiply
   22,417.34x = 30,935.72 × 12,345.60
4. Step 4: Simplify right side
   22,417.34x = 381,920,024.83
5. Step 5: Solve for x
   x = 381,920,024.83/22,417.34
6. Step 6: Final answer
   x = 17,036.81