Finding the Fourth Proportional to 9,071.75, 13,602.67 and 2,830.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,071.75 : 13,602.67 = 2,830.10 : x
2. Step 2: Convert to fraction form
   9,071.75/13,602.67 = 2,830.10/x
3. Step 3: Cross multiply
   9,071.75x = 13,602.67 × 2,830.10
4. Step 4: Simplify right side
   9,071.75x = 38,496,841.28
5. Step 5: Solve for x
   x = 38,496,841.28/9,071.75
6. Step 6: Final answer
   x = 4,243.59