Finding the Fourth Proportional to 8,978.06, 13,467.15 and 3,134.67

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978.06 : 13,467.15 = 3,134.67 : x
2. Step 2: Convert to fraction form
   8,978.06/13,467.15 = 3,134.67/x
3. Step 3: Cross multiply
   8,978.06x = 13,467.15 × 3,134.67
4. Step 4: Simplify right side
   8,978.06x = 42,215,071.09
5. Step 5: Solve for x
   x = 42,215,071.09/8,978.06
6. Step 6: Final answer
   x = 4,702.03