Finding the Fourth Proportional to 13,033.61, 17,985.93 and 7,725.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,033.61 : 17,985.93 = 7,725.27 : x
2. Step 2: Convert to fraction form
   13,033.61/17,985.93 = 7,725.27/x
3. Step 3: Cross multiply
   13,033.61x = 17,985.93 × 7,725.27
4. Step 4: Simplify right side
   13,033.61x = 138,946,165.45
5. Step 5: Solve for x
   x = 138,946,165.45/13,033.61
6. Step 6: Final answer
   x = 10,660.61