Finding the Fourth Proportional to 9,907.51, 14,772.69 and 9,635.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.51 : 14,772.69 = 9,635.35 : x
2. Step 2: Convert to fraction form
   9,907.51/14,772.69 = 9,635.35/x
3. Step 3: Cross multiply
   9,907.51x = 14,772.69 × 9,635.35
4. Step 4: Simplify right side
   9,907.51x = 142,340,038.59
5. Step 5: Solve for x
   x = 142,340,038.59/9,907.51
6. Step 6: Final answer
   x = 14,366.88