Finding the Fourth Proportional to 35,643, 53,456.00 and 11,951.39

Step by Step Solution

1. Step 1: Write the proportion equation
   35,643 : 53,456.00 = 11,951.39 : x
2. Step 2: Convert to fraction form
   35,643/53,456.00 = 11,951.39/x
3. Step 3: Cross multiply
   35,643x = 53,456.00 × 11,951.39
4. Step 4: Simplify right side
   35,643x = 638,873,176.80
5. Step 5: Solve for x
   x = 638,873,176.80/35,643
6. Step 6: Final answer
   x = 17,924.23