Finding the Fourth Proportional to 9,780.69, 13,499.08 and 5,804.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.69 : 13,499.08 = 5,804.00 : x
2. Step 2: Convert to fraction form
   9,780.69/13,499.08 = 5,804.00/x
3. Step 3: Cross multiply
   9,780.69x = 13,499.08 × 5,804.00
4. Step 4: Simplify right side
   9,780.69x = 78,348,578.31
5. Step 5: Solve for x
   x = 78,348,578.31/9,780.69
6. Step 6: Final answer
   x = 8,010.54