Finding the Fourth Proportional to 35,789, 53,665.26 and 13,585.48

Step by Step Solution

1. Step 1: Write the proportion equation
   35,789 : 53,665.26 = 13,585.48 : x
2. Step 2: Convert to fraction form
   35,789/53,665.26 = 13,585.48/x
3. Step 3: Cross multiply
   35,789x = 53,665.26 × 13,585.48
4. Step 4: Simplify right side
   35,789x = 729,068,316.42
5. Step 5: Solve for x
   x = 729,068,316.42/35,789
6. Step 6: Final answer
   x = 20,371.30