Finding the Fourth Proportional to 21,429.30, 32,147.73 and 7,390.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,429.30 : 32,147.73 = 7,390.83 : x
2. Step 2: Convert to fraction form
   21,429.30/32,147.73 = 7,390.83/x
3. Step 3: Cross multiply
   21,429.30x = 32,147.73 × 7,390.83
4. Step 4: Simplify right side
   21,429.30x = 237,598,407.32
5. Step 5: Solve for x
   x = 237,598,407.32/21,429.30
6. Step 6: Final answer
   x = 11,087.55