Finding the Fourth Proportional to 9,695.78, 13,379.10 and 5,445.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,695.78 : 13,379.10 = 5,445.98 : x
2. Step 2: Convert to fraction form
   9,695.78/13,379.10 = 5,445.98/x
3. Step 3: Cross multiply
   9,695.78x = 13,379.10 × 5,445.98
4. Step 4: Simplify right side
   9,695.78x = 72,862,311.02
5. Step 5: Solve for x
   x = 72,862,311.02/9,695.78
6. Step 6: Final answer
   x = 7,514.85