Finding the Fourth Proportional to 35,603.52, 53,412.82 and 13,416.42

Step by Step Solution

1. Step 1: Write the proportion equation
   35,603.52 : 53,412.82 = 13,416.42 : x
2. Step 2: Convert to fraction form
   35,603.52/53,412.82 = 13,416.42/x
3. Step 3: Cross multiply
   35,603.52x = 53,412.82 × 13,416.42
4. Step 4: Simplify right side
   35,603.52x = 716,608,826.50
5. Step 5: Solve for x
   x = 716,608,826.50/35,603.52
6. Step 6: Final answer
   x = 20,127.47