Finding the Fourth Proportional to 12,075.90, 18,113.76 and 3,310.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,075.90 : 18,113.76 = 3,310.86 : x
2. Step 2: Convert to fraction form
   12,075.90/18,113.76 = 3,310.86/x
3. Step 3: Cross multiply
   12,075.90x = 18,113.76 × 3,310.86
4. Step 4: Simplify right side
   12,075.90x = 59,972,123.43
5. Step 5: Solve for x
   x = 59,972,123.43/12,075.90
6. Step 6: Final answer
   x = 4,966.27