Finding the Fourth Proportional to 9,089.31, 12,543.12 and 5,056.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.31 : 12,543.12 = 5,056.10 : x
2. Step 2: Convert to fraction form
   9,089.31/12,543.12 = 5,056.10/x
3. Step 3: Cross multiply
   9,089.31x = 12,543.12 × 5,056.10
4. Step 4: Simplify right side
   9,089.31x = 63,419,269.03
5. Step 5: Solve for x
   x = 63,419,269.03/9,089.31
6. Step 6: Final answer
   x = 6,977.35