Finding the Fourth Proportional to 7,047.88, 10,554.98 and 3,920.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,047.88 : 10,554.98 = 3,920.12 : x
2. Step 2: Convert to fraction form
   7,047.88/10,554.98 = 3,920.12/x
3. Step 3: Cross multiply
   7,047.88x = 10,554.98 × 3,920.12
4. Step 4: Simplify right side
   7,047.88x = 41,376,755.40
5. Step 5: Solve for x
   x = 41,376,755.40/7,047.88
6. Step 6: Final answer
   x = 5,870.81