Finding the Fourth Proportional to 12,612.50, 17,405.06 and 7,307.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612.50 : 17,405.06 = 7,307.19 : x
2. Step 2: Convert to fraction form
   12,612.50/17,405.06 = 7,307.19/x
3. Step 3: Cross multiply
   12,612.50x = 17,405.06 × 7,307.19
4. Step 4: Simplify right side
   12,612.50x = 127,182,043.85
5. Step 5: Solve for x
   x = 127,182,043.85/12,612.50
6. Step 6: Final answer
   x = 10,083.81