Finding the Fourth Proportional to 9,775.68, 14,667.63 and 3,112.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,775.68 : 14,667.63 = 3,112.74 : x
2. Step 2: Convert to fraction form
   9,775.68/14,667.63 = 3,112.74/x
3. Step 3: Cross multiply
   9,775.68x = 14,667.63 × 3,112.74
4. Step 4: Simplify right side
   9,775.68x = 45,656,518.61
5. Step 5: Solve for x
   x = 45,656,518.61/9,775.68
6. Step 6: Final answer
   x = 4,670.42