Finding the Fourth Proportional to 35,404.88, 53,115.96 and 10,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   35,404.88 : 53,115.96 = 10,780.88 : x
2. Step 2: Convert to fraction form
   35,404.88/53,115.96 = 10,780.88/x
3. Step 3: Cross multiply
   35,404.88x = 53,115.96 × 10,780.88
4. Step 4: Simplify right side
   35,404.88x = 572,636,790.84
5. Step 5: Solve for x
   x = 572,636,790.84/35,404.88
6. Step 6: Final answer
   x = 16,173.95