Finding the Fourth Proportional to 13,185.48, 19,779.94 and 4,871.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,185.48 : 19,779.94 = 4,871.32 : x
2. Step 2: Convert to fraction form
   13,185.48/19,779.94 = 4,871.32/x
3. Step 3: Cross multiply
   13,185.48x = 19,779.94 × 4,871.32
4. Step 4: Simplify right side
   13,185.48x = 96,354,417.32
5. Step 5: Solve for x
   x = 96,354,417.32/13,185.48
6. Step 6: Final answer
   x = 7,307.62