Finding the Fourth Proportional to 35,402.27, 53,159.83 and 20,621.93

Step by Step Solution

1. Step 1: Write the proportion equation
   35,402.27 : 53,159.83 = 20,621.93 : x
2. Step 2: Convert to fraction form
   35,402.27/53,159.83 = 20,621.93/x
3. Step 3: Cross multiply
   35,402.27x = 53,159.83 × 20,621.93
4. Step 4: Simplify right side
   35,402.27x = 1,096,257,975.72
5. Step 5: Solve for x
   x = 1,096,257,975.72/35,402.27
6. Step 6: Final answer
   x = 30,965.76