Finding the Fourth Proportional to 9,019.62, 13,531.59 and 2,779.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.62 : 13,531.59 = 2,779.92 : x
2. Step 2: Convert to fraction form
   9,019.62/13,531.59 = 2,779.92/x
3. Step 3: Cross multiply
   9,019.62x = 13,531.59 × 2,779.92
4. Step 4: Simplify right side
   9,019.62x = 37,616,737.67
5. Step 5: Solve for x
   x = 37,616,737.67/9,019.62
6. Step 6: Final answer
   x = 4,170.55