Finding the Fourth Proportional to 22,394, 30,903.75 and 12,458

Step by Step Solution

1. Step 1: Write the proportion equation
   22,394 : 30,903.75 = 12,458 : x
2. Step 2: Convert to fraction form
   22,394/30,903.75 = 12,458/x
3. Step 3: Cross multiply
   22,394x = 30,903.75 × 12,458
4. Step 4: Simplify right side
   22,394x = 384,998,917.50
5. Step 5: Solve for x
   x = 384,998,917.50/22,394
6. Step 6: Final answer
   x = 17,192.06