Finding the Fourth Proportional to 35,513.94, 53,257 and 13,315.22

Step by Step Solution

1. Step 1: Write the proportion equation
   35,513.94 : 53,257 = 13,315.22 : x
2. Step 2: Convert to fraction form
   35,513.94/53,257 = 13,315.22/x
3. Step 3: Cross multiply
   35,513.94x = 53,257 × 13,315.22
4. Step 4: Simplify right side
   35,513.94x = 709,128,671.54
5. Step 5: Solve for x
   x = 709,128,671.54/35,513.94
6. Step 6: Final answer
   x = 19,967.61