Finding the Fourth Proportional to 12,611.48, 17,383.34 and 10,085.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.48 : 17,383.34 = 10,085.49 : x
2. Step 2: Convert to fraction form
   12,611.48/17,383.34 = 10,085.49/x
3. Step 3: Cross multiply
   12,611.48x = 17,383.34 × 10,085.49
4. Step 4: Simplify right side
   12,611.48x = 175,319,526.95
5. Step 5: Solve for x
   x = 175,319,526.95/12,611.48
6. Step 6: Final answer
   x = 13,901.59