Finding the Fourth Proportional to 35,604.58, 53,410.53 and 13,436.62

Step by Step Solution

1. Step 1: Write the proportion equation
   35,604.58 : 53,410.53 = 13,436.62 : x
2. Step 2: Convert to fraction form
   35,604.58/53,410.53 = 13,436.62/x
3. Step 3: Cross multiply
   35,604.58x = 53,410.53 × 13,436.62
4. Step 4: Simplify right side
   35,604.58x = 717,656,995.61
5. Step 5: Solve for x
   x = 717,656,995.61/35,604.58
6. Step 6: Final answer
   x = 20,156.31