Finding the Fourth Proportional to 9,761.56, 13,470.42 and 5,783.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,761.56 : 13,470.42 = 5,783.04 : x
2. Step 2: Convert to fraction form
   9,761.56/13,470.42 = 5,783.04/x
3. Step 3: Cross multiply
   9,761.56x = 13,470.42 × 5,783.04
4. Step 4: Simplify right side
   9,761.56x = 77,899,977.68
5. Step 5: Solve for x
   x = 77,899,977.68/9,761.56
6. Step 6: Final answer
   x = 7,980.28