Finding the Fourth Proportional to 9,919.47, 14,885.69 and 4,725.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,919.47 : 14,885.69 = 4,725.75 : x
2. Step 2: Convert to fraction form
   9,919.47/14,885.69 = 4,725.75/x
3. Step 3: Cross multiply
   9,919.47x = 14,885.69 × 4,725.75
4. Step 4: Simplify right side
   9,919.47x = 70,346,025.89
5. Step 5: Solve for x
   x = 70,346,025.89/9,919.47
6. Step 6: Final answer
   x = 7,091.71