Finding the Fourth Proportional to 35,789.42, 53,693.85 and 12,417.68

Step by Step Solution

1. Step 1: Write the proportion equation
   35,789.42 : 53,693.85 = 12,417.68 : x
2. Step 2: Convert to fraction form
   35,789.42/53,693.85 = 12,417.68/x
3. Step 3: Cross multiply
   35,789.42x = 53,693.85 × 12,417.68
4. Step 4: Simplify right side
   35,789.42x = 666,753,047.27
5. Step 5: Solve for x
   x = 666,753,047.27/35,789.42
6. Step 6: Final answer
   x = 18,629.89