Finding the Fourth Proportional to 9,972.45, 13,763.91 and 5,726.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972.45 : 13,763.91 = 5,726.01 : x
2. Step 2: Convert to fraction form
   9,972.45/13,763.91 = 5,726.01/x
3. Step 3: Cross multiply
   9,972.45x = 13,763.91 × 5,726.01
4. Step 4: Simplify right side
   9,972.45x = 78,812,286.30
5. Step 5: Solve for x
   x = 78,812,286.30/9,972.45
6. Step 6: Final answer
   x = 7,903.00