Finding the Fourth Proportional to 12,436.60, 17,162.01 and 7,127.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,436.60 : 17,162.01 = 7,127.74 : x
2. Step 2: Convert to fraction form
   12,436.60/17,162.01 = 7,127.74/x
3. Step 3: Cross multiply
   12,436.60x = 17,162.01 × 7,127.74
4. Step 4: Simplify right side
   12,436.60x = 122,326,345.16
5. Step 5: Solve for x
   x = 122,326,345.16/12,436.60
6. Step 6: Final answer
   x = 9,836.00