Finding the Fourth Proportional to 12,964, 17,890.32 and 7,076

Step by Step Solution

1. Step 1: Write the proportion equation
   12,964 : 17,890.32 = 7,076 : x
2. Step 2: Convert to fraction form
   12,964/17,890.32 = 7,076/x
3. Step 3: Cross multiply
   12,964x = 17,890.32 × 7,076
4. Step 4: Simplify right side
   12,964x = 126,591,904.32
5. Step 5: Solve for x
   x = 126,591,904.32/12,964
6. Step 6: Final answer
   x = 9,764.88