Finding the Fourth Proportional to 7,385.64, 11,085.98 and 3,690.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,385.64 : 11,085.98 = 3,690.52 : x
2. Step 2: Convert to fraction form
   7,385.64/11,085.98 = 3,690.52/x
3. Step 3: Cross multiply
   7,385.64x = 11,085.98 × 3,690.52
4. Step 4: Simplify right side
   7,385.64x = 40,913,067.86
5. Step 5: Solve for x
   x = 40,913,067.86/7,385.64
6. Step 6: Final answer
   x = 5,539.54