Finding the Fourth Proportional to 7,758.37, 10,719.09 and 5,410.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,758.37 : 10,719.09 = 5,410.99 : x
2. Step 2: Convert to fraction form
   7,758.37/10,719.09 = 5,410.99/x
3. Step 3: Cross multiply
   7,758.37x = 10,719.09 × 5,410.99
4. Step 4: Simplify right side
   7,758.37x = 58,000,808.15
5. Step 5: Solve for x
   x = 58,000,808.15/7,758.37
6. Step 6: Final answer
   x = 7,475.91