Finding the Fourth Proportional to 8,735.10, 12,055.40 and 5,377.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,735.10 : 12,055.40 = 5,377.24 : x
2. Step 2: Convert to fraction form
   8,735.10/12,055.40 = 5,377.24/x
3. Step 3: Cross multiply
   8,735.10x = 12,055.40 × 5,377.24
4. Step 4: Simplify right side
   8,735.10x = 64,824,779.10
5. Step 5: Solve for x
   x = 64,824,779.10/8,735.10
6. Step 6: Final answer
   x = 7,421.18