Finding the Fourth Proportional to 12,302.30, 16,978.59 and 6,997.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,302.30 : 16,978.59 = 6,997.95 : x
2. Step 2: Convert to fraction form
   12,302.30/16,978.59 = 6,997.95/x
3. Step 3: Cross multiply
   12,302.30x = 16,978.59 × 6,997.95
4. Step 4: Simplify right side
   12,302.30x = 118,815,323.89
5. Step 5: Solve for x
   x = 118,815,323.89/12,302.30
6. Step 6: Final answer
   x = 9,657.98