Finding the Fourth Proportional to 9,972.21, 13,762.25 and 5,495.95

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972.21 : 13,762.25 = 5,495.95 : x
2. Step 2: Convert to fraction form
   9,972.21/13,762.25 = 5,495.95/x
3. Step 3: Cross multiply
   9,972.21x = 13,762.25 × 5,495.95
4. Step 4: Simplify right side
   9,972.21x = 75,636,637.89
5. Step 5: Solve for x
   x = 75,636,637.89/9,972.21
6. Step 6: Final answer
   x = 7,584.74