Finding the Fourth Proportional to 9,342.01, 12,892.88 and 6,980.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,342.01 : 12,892.88 = 6,980.05 : x
2. Step 2: Convert to fraction form
   9,342.01/12,892.88 = 6,980.05/x
3. Step 3: Cross multiply
   9,342.01x = 12,892.88 × 6,980.05
4. Step 4: Simplify right side
   9,342.01x = 89,992,947.04
5. Step 5: Solve for x
   x = 89,992,947.04/9,342.01
6. Step 6: Final answer
   x = 9,633.15