Finding the Fourth Proportional to 11,970.34, 17,981.43 and 9,784.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,970.34 : 17,981.43 = 9,784.42 : x
2. Step 2: Convert to fraction form
   11,970.34/17,981.43 = 9,784.42/x
3. Step 3: Cross multiply
   11,970.34x = 17,981.43 × 9,784.42
4. Step 4: Simplify right side
   11,970.34x = 175,937,863.32
5. Step 5: Solve for x
   x = 175,937,863.32/11,970.34
6. Step 6: Final answer
   x = 14,697.82