Finding the Fourth Proportional to 9,781.60, 13,496.52 and 5,803.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.60 : 13,496.52 = 5,803.99 : x
2. Step 2: Convert to fraction form
   9,781.60/13,496.52 = 5,803.99/x
3. Step 3: Cross multiply
   9,781.60x = 13,496.52 × 5,803.99
4. Step 4: Simplify right side
   9,781.60x = 78,333,667.11
5. Step 5: Solve for x
   x = 78,333,667.11/9,781.60
6. Step 6: Final answer
   x = 8,008.27