Finding the Fourth Proportional to 53,257.50, 73,500.21 and 30,603.42

Step by Step Solution

1. Step 1: Write the proportion equation
   53,257.50 : 73,500.21 = 30,603.42 : x
2. Step 2: Convert to fraction form
   53,257.50/73,500.21 = 30,603.42/x
3. Step 3: Cross multiply
   53,257.50x = 73,500.21 × 30,603.42
4. Step 4: Simplify right side
   53,257.50x = 2,249,357,796.72
5. Step 5: Solve for x
   x = 2,249,357,796.72/53,257.50
6. Step 6: Final answer
   x = 42,235.51