Finding the Fourth Proportional to 35,558.72, 53,300.48 and 13,357.76

Step by Step Solution

1. Step 1: Write the proportion equation
   35,558.72 : 53,300.48 = 13,357.76 : x
2. Step 2: Convert to fraction form
   35,558.72/53,300.48 = 13,357.76/x
3. Step 3: Cross multiply
   35,558.72x = 53,300.48 × 13,357.76
4. Step 4: Simplify right side
   35,558.72x = 711,975,019.72
5. Step 5: Solve for x
   x = 711,975,019.72/35,558.72
6. Step 6: Final answer
   x = 20,022.52