Finding the Fourth Proportional to 9,855.86, 14,782.83 and 2,930.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,855.86 : 14,782.83 = 2,930.42 : x
2. Step 2: Convert to fraction form
   9,855.86/14,782.83 = 2,930.42/x
3. Step 3: Cross multiply
   9,855.86x = 14,782.83 × 2,930.42
4. Step 4: Simplify right side
   9,855.86x = 43,319,900.69
5. Step 5: Solve for x
   x = 43,319,900.69/9,855.86
6. Step 6: Final answer
   x = 4,395.34