Finding the Fourth Proportional to 35,616.27, 53,436.69 and 13,435.98

Step by Step Solution

1. Step 1: Write the proportion equation
   35,616.27 : 53,436.69 = 13,435.98 : x
2. Step 2: Convert to fraction form
   35,616.27/53,436.69 = 13,435.98/x
3. Step 3: Cross multiply
   35,616.27x = 53,436.69 × 13,435.98
4. Step 4: Simplify right side
   35,616.27x = 717,974,298.11
5. Step 5: Solve for x
   x = 717,974,298.11/35,616.27
6. Step 6: Final answer
   x = 20,158.60