Finding the Fourth Proportional to 12,354.21, 17,030.93 and 7,630.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.21 : 17,030.93 = 7,630.29 : x
2. Step 2: Convert to fraction form
   12,354.21/17,030.93 = 7,630.29/x
3. Step 3: Cross multiply
   12,354.21x = 17,030.93 × 7,630.29
4. Step 4: Simplify right side
   12,354.21x = 129,950,896.72
5. Step 5: Solve for x
   x = 129,950,896.72/12,354.21
6. Step 6: Final answer
   x = 10,518.75