Finding the Fourth Proportional to 9,985.38, 14,974.83 and 4,719.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,985.38 : 14,974.83 = 4,719.57 : x
2. Step 2: Convert to fraction form
   9,985.38/14,974.83 = 4,719.57/x
3. Step 3: Cross multiply
   9,985.38x = 14,974.83 × 4,719.57
4. Step 4: Simplify right side
   9,985.38x = 70,674,758.42
5. Step 5: Solve for x
   x = 70,674,758.42/9,985.38
6. Step 6: Final answer
   x = 7,077.82