Finding the Fourth Proportional to 6,985.77, 9,640.55 and 3,842.04

Step by Step Solution

1. Step 1: Write the proportion equation
   6,985.77 : 9,640.55 = 3,842.04 : x
2. Step 2: Convert to fraction form
   6,985.77/9,640.55 = 3,842.04/x
3. Step 3: Cross multiply
   6,985.77x = 9,640.55 × 3,842.04
4. Step 4: Simplify right side
   6,985.77x = 37,039,359.51
5. Step 5: Solve for x
   x = 37,039,359.51/6,985.77
6. Step 6: Final answer
   x = 5,302.12