Finding the Fourth Proportional to 35,518.05, 53,274.98 and 13,329.56

Step by Step Solution

1. Step 1: Write the proportion equation
   35,518.05 : 53,274.98 = 13,329.56 : x
2. Step 2: Convert to fraction form
   35,518.05/53,274.98 = 13,329.56/x
3. Step 3: Cross multiply
   35,518.05x = 53,274.98 × 13,329.56
4. Step 4: Simplify right side
   35,518.05x = 710,132,208.92
5. Step 5: Solve for x
   x = 710,132,208.92/35,518.05
6. Step 6: Final answer
   x = 19,993.56