Finding the Fourth Proportional to 12,985.31, 19,482.83 and 6,741.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,985.31 : 19,482.83 = 6,741.43 : x
2. Step 2: Convert to fraction form
   12,985.31/19,482.83 = 6,741.43/x
3. Step 3: Cross multiply
   12,985.31x = 19,482.83 × 6,741.43
4. Step 4: Simplify right side
   12,985.31x = 131,342,077.51
5. Step 5: Solve for x
   x = 131,342,077.51/12,985.31
6. Step 6: Final answer
   x = 10,114.66