Finding the Fourth Proportional to 10,536.63, 14,607.12 and 9,974.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,536.63 : 14,607.12 = 9,974.84 : x
2. Step 2: Convert to fraction form
   10,536.63/14,607.12 = 9,974.84/x
3. Step 3: Cross multiply
   10,536.63x = 14,607.12 × 9,974.84
4. Step 4: Simplify right side
   10,536.63x = 145,703,611.83
5. Step 5: Solve for x
   x = 145,703,611.83/10,536.63
6. Step 6: Final answer
   x = 13,828.29