Finding the Fourth Proportional to 10,573.60, 14,576.56 and 7,212.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,573.60 : 14,576.56 = 7,212.12 : x
2. Step 2: Convert to fraction form
   10,573.60/14,576.56 = 7,212.12/x
3. Step 3: Cross multiply
   10,573.60x = 14,576.56 × 7,212.12
4. Step 4: Simplify right side
   10,573.60x = 105,127,899.91
5. Step 5: Solve for x
   x = 105,127,899.91/10,573.60
6. Step 6: Final answer
   x = 9,942.49