Finding the Fourth Proportional to 10,445.82, 15,670.89 and 3,520.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,445.82 : 15,670.89 = 3,520.86 : x
2. Step 2: Convert to fraction form
   10,445.82/15,670.89 = 3,520.86/x
3. Step 3: Cross multiply
   10,445.82x = 15,670.89 × 3,520.86
4. Step 4: Simplify right side
   10,445.82x = 55,175,009.77
5. Step 5: Solve for x
   x = 55,175,009.77/10,445.82
6. Step 6: Final answer
   x = 5,282.02