Finding the Fourth Proportional to 35,442, 53,171.64 and 10,818

Step by Step Solution

1. Step 1: Write the proportion equation
   35,442 : 53,171.64 = 10,818 : x
2. Step 2: Convert to fraction form
   35,442/53,171.64 = 10,818/x
3. Step 3: Cross multiply
   35,442x = 53,171.64 × 10,818
4. Step 4: Simplify right side
   35,442x = 575,210,801.52
5. Step 5: Solve for x
   x = 575,210,801.52/35,442
6. Step 6: Final answer
   x = 16,229.64