Finding the Fourth Proportional to 9,815.12, 14,726.62 and 3,575.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.12 : 14,726.62 = 3,575.57 : x
2. Step 2: Convert to fraction form
   9,815.12/14,726.62 = 3,575.57/x
3. Step 3: Cross multiply
   9,815.12x = 14,726.62 × 3,575.57
4. Step 4: Simplify right side
   9,815.12x = 52,656,060.67
5. Step 5: Solve for x
   x = 52,656,060.67/9,815.12
6. Step 6: Final answer
   x = 5,364.79