Finding the Fourth Proportional to 12,835.53, 17,705.63 and 7,727.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,835.53 : 17,705.63 = 7,727.49 : x
2. Step 2: Convert to fraction form
   12,835.53/17,705.63 = 7,727.49/x
3. Step 3: Cross multiply
   12,835.53x = 17,705.63 × 7,727.49
4. Step 4: Simplify right side
   12,835.53x = 136,820,085.61
5. Step 5: Solve for x
   x = 136,820,085.61/12,835.53
6. Step 6: Final answer
   x = 10,659.48