Finding the Fourth Proportional to 9,019.69, 12,446.10 and 4,985.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.69 : 12,446.10 = 4,985.98 : x
2. Step 2: Convert to fraction form
   9,019.69/12,446.10 = 4,985.98/x
3. Step 3: Cross multiply
   9,019.69x = 12,446.10 × 4,985.98
4. Step 4: Simplify right side
   9,019.69x = 62,055,994.26
5. Step 5: Solve for x
   x = 62,055,994.26/9,019.69
6. Step 6: Final answer
   x = 6,880.05