Finding the Fourth Proportional to 21,981.10, 32,980.87 and 9,494.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,981.10 : 32,980.87 = 9,494.69 : x
2. Step 2: Convert to fraction form
   21,981.10/32,980.87 = 9,494.69/x
3. Step 3: Cross multiply
   21,981.10x = 32,980.87 × 9,494.69
4. Step 4: Simplify right side
   21,981.10x = 313,143,261.82
5. Step 5: Solve for x
   x = 313,143,261.82/21,981.10
6. Step 6: Final answer
   x = 14,246.03