Finding the Fourth Proportional to 10,435.38, 14,400.72 and 5,719.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.38 : 14,400.72 = 5,719.74 : x
2. Step 2: Convert to fraction form
   10,435.38/14,400.72 = 5,719.74/x
3. Step 3: Cross multiply
   10,435.38x = 14,400.72 × 5,719.74
4. Step 4: Simplify right side
   10,435.38x = 82,368,374.21
5. Step 5: Solve for x
   x = 82,368,374.21/10,435.38
6. Step 6: Final answer
   x = 7,893.18