Finding the Fourth Proportional to 13,141.48, 19,710.94 and 3,907.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,141.48 : 19,710.94 = 3,907.56 : x
2. Step 2: Convert to fraction form
   13,141.48/19,710.94 = 3,907.56/x
3. Step 3: Cross multiply
   13,141.48x = 19,710.94 × 3,907.56
4. Step 4: Simplify right side
   13,141.48x = 77,021,680.71
5. Step 5: Solve for x
   x = 77,021,680.71/13,141.48
6. Step 6: Final answer
   x = 5,860.96