Finding the Fourth Proportional to 10,503.31, 14,494.57 and 5,787.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,503.31 : 14,494.57 = 5,787.70 : x
2. Step 2: Convert to fraction form
   10,503.31/14,494.57 = 5,787.70/x
3. Step 3: Cross multiply
   10,503.31x = 14,494.57 × 5,787.70
4. Step 4: Simplify right side
   10,503.31x = 83,890,222.79
5. Step 5: Solve for x
   x = 83,890,222.79/10,503.31
6. Step 6: Final answer
   x = 7,987.03