Finding the Fourth Proportional to 9,976.34, 13,763.50 and 5,725.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,976.34 : 13,763.50 = 5,725.87 : x
2. Step 2: Convert to fraction form
   9,976.34/13,763.50 = 5,725.87/x
3. Step 3: Cross multiply
   9,976.34x = 13,763.50 × 5,725.87
4. Step 4: Simplify right side
   9,976.34x = 78,807,963.02
5. Step 5: Solve for x
   x = 78,807,963.02/9,976.34
6. Step 6: Final answer
   x = 7,899.48