Finding the Fourth Proportional to 12,938.82, 19,405.80 and 3,576.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,938.82 : 19,405.80 = 3,576.84 : x
2. Step 2: Convert to fraction form
   12,938.82/19,405.80 = 3,576.84/x
3. Step 3: Cross multiply
   12,938.82x = 19,405.80 × 3,576.84
4. Step 4: Simplify right side
   12,938.82x = 69,411,441.67
5. Step 5: Solve for x
   x = 69,411,441.67/12,938.82
6. Step 6: Final answer
   x = 5,364.59