Finding the Fourth Proportional to 13,002.08, 17,941.68 and 7,964

Step by Step Solution

1. Step 1: Write the proportion equation
   13,002.08 : 17,941.68 = 7,964 : x
2. Step 2: Convert to fraction form
   13,002.08/17,941.68 = 7,964/x
3. Step 3: Cross multiply
   13,002.08x = 17,941.68 × 7,964
4. Step 4: Simplify right side
   13,002.08x = 142,887,539.52
5. Step 5: Solve for x
   x = 142,887,539.52/13,002.08
6. Step 6: Final answer
   x = 10,989.59