Finding the Fourth Proportional to 12,887.15, 17,784.27 and 7,298.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,887.15 : 17,784.27 = 7,298.15 : x
2. Step 2: Convert to fraction form
   12,887.15/17,784.27 = 7,298.15/x
3. Step 3: Cross multiply
   12,887.15x = 17,784.27 × 7,298.15
4. Step 4: Simplify right side
   12,887.15x = 129,792,181.18
5. Step 5: Solve for x
   x = 129,792,181.18/12,887.15
6. Step 6: Final answer
   x = 10,071.45