Finding the Fourth Proportional to 6,915.79, 10,376.12 and 3,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,915.79 : 10,376.12 = 3,020.50 : x
2. Step 2: Convert to fraction form
   6,915.79/10,376.12 = 3,020.50/x
3. Step 3: Cross multiply
   6,915.79x = 10,376.12 × 3,020.50
4. Step 4: Simplify right side
   6,915.79x = 31,341,070.46
5. Step 5: Solve for x
   x = 31,341,070.46/6,915.79
6. Step 6: Final answer
   x = 4,531.81