Finding the Fourth Proportional to 9,793.60, 13,505.22 and 8,381.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,793.60 : 13,505.22 = 8,381.98 : x
2. Step 2: Convert to fraction form
   9,793.60/13,505.22 = 8,381.98/x
3. Step 3: Cross multiply
   9,793.60x = 13,505.22 × 8,381.98
4. Step 4: Simplify right side
   9,793.60x = 113,200,483.94
5. Step 5: Solve for x
   x = 113,200,483.94/9,793.60
6. Step 6: Final answer
   x = 11,558.62