Finding the Fourth Proportional to 9,143.58, 13,705.02 and 3,875.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143.58 : 13,705.02 = 3,875.31 : x
2. Step 2: Convert to fraction form
   9,143.58/13,705.02 = 3,875.31/x
3. Step 3: Cross multiply
   9,143.58x = 13,705.02 × 3,875.31
4. Step 4: Simplify right side
   9,143.58x = 53,111,201.06
5. Step 5: Solve for x
   x = 53,111,201.06/9,143.58
6. Step 6: Final answer
   x = 5,808.58