Finding the Fourth Proportional to 13,935.56, 19,212.06 and 9,949.74

Step by Step Solution

1. Step 1: Write the proportion equation
   13,935.56 : 19,212.06 = 9,949.74 : x
2. Step 2: Convert to fraction form
   13,935.56/19,212.06 = 9,949.74/x
3. Step 3: Cross multiply
   13,935.56x = 19,212.06 × 9,949.74
4. Step 4: Simplify right side
   13,935.56x = 191,155,001.86
5. Step 5: Solve for x
   x = 191,155,001.86/13,935.56
6. Step 6: Final answer
   x = 13,717.07