Finding the Fourth Proportional to 9,945.76, 14,886.16 and 7,312.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.76 : 14,886.16 = 7,312.56 : x
2. Step 2: Convert to fraction form
   9,945.76/14,886.16 = 7,312.56/x
3. Step 3: Cross multiply
   9,945.76x = 14,886.16 × 7,312.56
4. Step 4: Simplify right side
   9,945.76x = 108,855,938.17
5. Step 5: Solve for x
   x = 108,855,938.17/9,945.76
6. Step 6: Final answer
   x = 10,944.96