Finding the Fourth Proportional to 21,473.02, 32,196.30 and 7,429.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,473.02 : 32,196.30 = 7,429.78 : x
2. Step 2: Convert to fraction form
   21,473.02/32,196.30 = 7,429.78/x
3. Step 3: Cross multiply
   21,473.02x = 32,196.30 × 7,429.78
4. Step 4: Simplify right side
   21,473.02x = 239,211,425.81
5. Step 5: Solve for x
   x = 239,211,425.81/21,473.02
6. Step 6: Final answer
   x = 11,140.09