Finding the Fourth Proportional to 9,685.38, 14,529.42 and 3,113.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,685.38 : 14,529.42 = 3,113.58 : x
2. Step 2: Convert to fraction form
   9,685.38/14,529.42 = 3,113.58/x
3. Step 3: Cross multiply
   9,685.38x = 14,529.42 × 3,113.58
4. Step 4: Simplify right side
   9,685.38x = 45,238,511.52
5. Step 5: Solve for x
   x = 45,238,511.52/9,685.38
6. Step 6: Final answer
   x = 4,670.80