Finding the Fourth Proportional to 35,370.47, 53,069.88 and 12,882.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,370.47 : 53,069.88 = 12,882.72 : x
2. Step 2: Convert to fraction form
   35,370.47/53,069.88 = 12,882.72/x
3. Step 3: Cross multiply
   35,370.47x = 53,069.88 × 12,882.72
4. Step 4: Simplify right side
   35,370.47x = 683,684,404.47
5. Step 5: Solve for x
   x = 683,684,404.47/35,370.47
6. Step 6: Final answer
   x = 19,329.24