Finding the Fourth Proportional to 42,913.83, 64,380.02 and 17,613.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,913.83 : 64,380.02 = 17,613.40 : x
2. Step 2: Convert to fraction form
   42,913.83/64,380.02 = 17,613.40/x
3. Step 3: Cross multiply
   42,913.83x = 64,380.02 × 17,613.40
4. Step 4: Simplify right side
   42,913.83x = 1,133,951,044.27
5. Step 5: Solve for x
   x = 1,133,951,044.27/42,913.83
6. Step 6: Final answer
   x = 26,423.91