Finding the Fourth Proportional to 9,859.32, 14,780.34 and 3,707.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,859.32 : 14,780.34 = 3,707.64 : x
2. Step 2: Convert to fraction form
   9,859.32/14,780.34 = 3,707.64/x
3. Step 3: Cross multiply
   9,859.32x = 14,780.34 × 3,707.64
4. Step 4: Simplify right side
   9,859.32x = 54,800,179.80
5. Step 5: Solve for x
   x = 54,800,179.80/9,859.32
6. Step 6: Final answer
   x = 5,558.21