Finding the Fourth Proportional to 52,485.72, 72,385.66 and 35,485.44

Step by Step Solution

1. Step 1: Write the proportion equation
   52,485.72 : 72,385.66 = 35,485.44 : x
2. Step 2: Convert to fraction form
   52,485.72/72,385.66 = 35,485.44/x
3. Step 3: Cross multiply
   52,485.72x = 72,385.66 × 35,485.44
4. Step 4: Simplify right side
   52,485.72x = 2,568,636,994.79
5. Step 5: Solve for x
   x = 2,568,636,994.79/52,485.72
6. Step 6: Final answer
   x = 48,939.73