Finding the Fourth Proportional to 10,448.58, 14,419.32 and 5,910.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,448.58 : 14,419.32 = 5,910.90 : x
2. Step 2: Convert to fraction form
   10,448.58/14,419.32 = 5,910.90/x
3. Step 3: Cross multiply
   10,448.58x = 14,419.32 × 5,910.90
4. Step 4: Simplify right side
   10,448.58x = 85,231,158.59
5. Step 5: Solve for x
   x = 85,231,158.59/10,448.58
6. Step 6: Final answer
   x = 8,157.20