Finding the Fourth Proportional to 35,406.16, 53,059.18 and 19,618.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,406.16 : 53,059.18 = 19,618.42 : x
2. Step 2: Convert to fraction form
   35,406.16/53,059.18 = 19,618.42/x
3. Step 3: Cross multiply
   35,406.16x = 53,059.18 × 19,618.42
4. Step 4: Simplify right side
   35,406.16x = 1,040,937,077.80
5. Step 5: Solve for x
   x = 1,040,937,077.80/35,406.16
6. Step 6: Final answer
   x = 29,399.88