Finding the Fourth Proportional to 12,380.76, 17,082.90 and 7,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,380.76 : 17,082.90 = 7,075.50 : x
2. Step 2: Convert to fraction form
   12,380.76/17,082.90 = 7,075.50/x
3. Step 3: Cross multiply
   12,380.76x = 17,082.90 × 7,075.50
4. Step 4: Simplify right side
   12,380.76x = 120,870,058.95
5. Step 5: Solve for x
   x = 120,870,058.95/12,380.76
6. Step 6: Final answer
   x = 9,762.73