Finding the Fourth Proportional to 13,904.64, 19,188.18 and 7,936.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,904.64 : 19,188.18 = 7,936.15 : x
2. Step 2: Convert to fraction form
   13,904.64/19,188.18 = 7,936.15/x
3. Step 3: Cross multiply
   13,904.64x = 19,188.18 × 7,936.15
4. Step 4: Simplify right side
   13,904.64x = 152,280,274.71
5. Step 5: Solve for x
   x = 152,280,274.71/13,904.64
6. Step 6: Final answer
   x = 10,951.76