Finding the Fourth Proportional to 9,051.76, 12,491.58 and 5,274.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,051.76 : 12,491.58 = 5,274.84 : x
2. Step 2: Convert to fraction form
   9,051.76/12,491.58 = 5,274.84/x
3. Step 3: Cross multiply
   9,051.76x = 12,491.58 × 5,274.84
4. Step 4: Simplify right side
   9,051.76x = 65,891,085.85
5. Step 5: Solve for x
   x = 65,891,085.85/9,051.76
6. Step 6: Final answer
   x = 7,279.37