Finding the Fourth Proportional to 35,753.52, 53,630.88 and 12,380.52

Step by Step Solution

1. Step 1: Write the proportion equation
   35,753.52 : 53,630.88 = 12,380.52 : x
2. Step 2: Convert to fraction form
   35,753.52/53,630.88 = 12,380.52/x
3. Step 3: Cross multiply
   35,753.52x = 53,630.88 × 12,380.52
4. Step 4: Simplify right side
   35,753.52x = 663,978,182.46
5. Step 5: Solve for x
   x = 663,978,182.46/35,753.52
6. Step 6: Final answer
   x = 18,570.99