Finding the Fourth Proportional to 7,448.84, 10,279.57 and 4,091.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,448.84 : 10,279.57 = 4,091.72 : x
2. Step 2: Convert to fraction form
   7,448.84/10,279.57 = 4,091.72/x
3. Step 3: Cross multiply
   7,448.84x = 10,279.57 × 4,091.72
4. Step 4: Simplify right side
   7,448.84x = 42,061,060.53
5. Step 5: Solve for x
   x = 42,061,060.53/7,448.84
6. Step 6: Final answer
   x = 5,646.66