Finding the Fourth Proportional to 9,962.88, 14,916.12 and 5,272.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.88 : 14,916.12 = 5,272.24 : x
2. Step 2: Convert to fraction form
   9,962.88/14,916.12 = 5,272.24/x
3. Step 3: Cross multiply
   9,962.88x = 14,916.12 × 5,272.24
4. Step 4: Simplify right side
   9,962.88x = 78,641,364.51
5. Step 5: Solve for x
   x = 78,641,364.51/9,962.88
6. Step 6: Final answer
   x = 7,893.44