Finding the Fourth Proportional to 7,910.01, 10,915.68 and 5,645.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,910.01 : 10,915.68 = 5,645.52 : x
2. Step 2: Convert to fraction form
   7,910.01/10,915.68 = 5,645.52/x
3. Step 3: Cross multiply
   7,910.01x = 10,915.68 × 5,645.52
4. Step 4: Simplify right side
   7,910.01x = 61,624,689.75
5. Step 5: Solve for x
   x = 61,624,689.75/7,910.01
6. Step 6: Final answer
   x = 7,790.72