Finding the Fourth Proportional to 9,858.39, 14,779.41 and 3,931.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,858.39 : 14,779.41 = 3,931.62 : x
2. Step 2: Convert to fraction form
   9,858.39/14,779.41 = 3,931.62/x
3. Step 3: Cross multiply
   9,858.39x = 14,779.41 × 3,931.62
4. Step 4: Simplify right side
   9,858.39x = 58,107,023.94
5. Step 5: Solve for x
   x = 58,107,023.94/9,858.39
6. Step 6: Final answer
   x = 5,894.17