Finding the Fourth Proportional to 35,780.69, 53,669.31 and 13,592.34

Step by Step Solution

1. Step 1: Write the proportion equation
   35,780.69 : 53,669.31 = 13,592.34 : x
2. Step 2: Convert to fraction form
   35,780.69/53,669.31 = 13,592.34/x
3. Step 3: Cross multiply
   35,780.69x = 53,669.31 × 13,592.34
4. Step 4: Simplify right side
   35,780.69x = 729,491,509.09
5. Step 5: Solve for x
   x = 729,491,509.09/35,780.69
6. Step 6: Final answer
   x = 20,387.86