Finding the Fourth Proportional to 9,085.79, 12,537.81 and 5,106.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.79 : 12,537.81 = 5,106.84 : x
2. Step 2: Convert to fraction form
   9,085.79/12,537.81 = 5,106.84/x
3. Step 3: Cross multiply
   9,085.79x = 12,537.81 × 5,106.84
4. Step 4: Simplify right side
   9,085.79x = 64,028,589.62
5. Step 5: Solve for x
   x = 64,028,589.62/9,085.79
6. Step 6: Final answer
   x = 7,047.12