Finding the Fourth Proportional to 12,702.94, 17,530.65 and 7,667.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,702.94 : 17,530.65 = 7,667.05 : x
2. Step 2: Convert to fraction form
   12,702.94/17,530.65 = 7,667.05/x
3. Step 3: Cross multiply
   12,702.94x = 17,530.65 × 7,667.05
4. Step 4: Simplify right side
   12,702.94x = 134,408,344.53
5. Step 5: Solve for x
   x = 134,408,344.53/12,702.94
6. Step 6: Final answer
   x = 10,580.89