Finding the Fourth Proportional to 35,598.55, 53,397.31 and 10,638.05

Step by Step Solution

1. Step 1: Write the proportion equation
   35,598.55 : 53,397.31 = 10,638.05 : x
2. Step 2: Convert to fraction form
   35,598.55/53,397.31 = 10,638.05/x
3. Step 3: Cross multiply
   35,598.55x = 53,397.31 × 10,638.05
4. Step 4: Simplify right side
   35,598.55x = 568,043,099.98
5. Step 5: Solve for x
   x = 568,043,099.98/35,598.55
6. Step 6: Final answer
   x = 15,956.92