Finding the Fourth Proportional to 9,900.06, 13,647.64 and 7,538.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.06 : 13,647.64 = 7,538.10 : x
2. Step 2: Convert to fraction form
   9,900.06/13,647.64 = 7,538.10/x
3. Step 3: Cross multiply
   9,900.06x = 13,647.64 × 7,538.10
4. Step 4: Simplify right side
   9,900.06x = 102,877,275.08
5. Step 5: Solve for x
   x = 102,877,275.08/9,900.06
6. Step 6: Final answer
   x = 10,391.58