Finding the Fourth Proportional to 13,904.16, 19,189.35 and 7,936.70

Step by Step Solution

1. Step 1: Write the proportion equation
   13,904.16 : 19,189.35 = 7,936.70 : x
2. Step 2: Convert to fraction form
   13,904.16/19,189.35 = 7,936.70/x
3. Step 3: Cross multiply
   13,904.16x = 19,189.35 × 7,936.70
4. Step 4: Simplify right side
   13,904.16x = 152,300,018.20
5. Step 5: Solve for x
   x = 152,300,018.20/13,904.16
6. Step 6: Final answer
   x = 10,953.56