Finding the Fourth Proportional to 12,640.98, 17,445.33 and 7,051.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,640.98 : 17,445.33 = 7,051.98 : x
2. Step 2: Convert to fraction form
   12,640.98/17,445.33 = 7,051.98/x
3. Step 3: Cross multiply
   12,640.98x = 17,445.33 × 7,051.98
4. Step 4: Simplify right side
   12,640.98x = 123,024,118.25
5. Step 5: Solve for x
   x = 123,024,118.25/12,640.98
6. Step 6: Final answer
   x = 9,732.17