Finding the Fourth Proportional to 13,915.83, 19,202.79 and 7,946.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,915.83 : 19,202.79 = 7,946.69 : x
2. Step 2: Convert to fraction form
   13,915.83/19,202.79 = 7,946.69/x
3. Step 3: Cross multiply
   13,915.83x = 19,202.79 × 7,946.69
4. Step 4: Simplify right side
   13,915.83x = 152,598,619.27
5. Step 5: Solve for x
   x = 152,598,619.27/13,915.83
6. Step 6: Final answer
   x = 10,965.83