Finding the Fourth Proportional to 13,293.31, 19,941.78 and 3,934.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,293.31 : 19,941.78 = 3,934.06 : x
2. Step 2: Convert to fraction form
   13,293.31/19,941.78 = 3,934.06/x
3. Step 3: Cross multiply
   13,293.31x = 19,941.78 × 3,934.06
4. Step 4: Simplify right side
   13,293.31x = 78,452,159.03
5. Step 5: Solve for x
   x = 78,452,159.03/13,293.31
6. Step 6: Final answer
   x = 5,901.63