Finding the Fourth Proportional to 5,780.50, 8,010.06 and 5,429.36

Step by Step Solution

1. Step 1: Write the proportion equation
   5,780.50 : 8,010.06 = 5,429.36 : x
2. Step 2: Convert to fraction form
   5,780.50/8,010.06 = 5,429.36/x
3. Step 3: Cross multiply
   5,780.50x = 8,010.06 × 5,429.36
4. Step 4: Simplify right side
   5,780.50x = 43,489,499.03
5. Step 5: Solve for x
   x = 43,489,499.03/5,780.50
6. Step 6: Final answer
   x = 7,523.49