Finding the Fourth Proportional to 9,981.30, 14,973.32 and 3,405.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.30 : 14,973.32 = 3,405.72 : x
2. Step 2: Convert to fraction form
   9,981.30/14,973.32 = 3,405.72/x
3. Step 3: Cross multiply
   9,981.30x = 14,973.32 × 3,405.72
4. Step 4: Simplify right side
   9,981.30x = 50,994,935.39
5. Step 5: Solve for x
   x = 50,994,935.39/9,981.30
6. Step 6: Final answer
   x = 5,109.05