Finding the Fourth Proportional to 53,520.48, 73,863.72 and 30,860.32

Step by Step Solution

1. Step 1: Write the proportion equation
   53,520.48 : 73,863.72 = 30,860.32 : x
2. Step 2: Convert to fraction form
   53,520.48/73,863.72 = 30,860.32/x
3. Step 3: Cross multiply
   53,520.48x = 73,863.72 × 30,860.32
4. Step 4: Simplify right side
   53,520.48x = 2,279,458,035.59
5. Step 5: Solve for x
   x = 2,279,458,035.59/53,520.48
6. Step 6: Final answer
   x = 42,590.39