Finding the Fourth Proportional to 9,518.74, 14,278.51 and 2,945.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,518.74 : 14,278.51 = 2,945.05 : x
2. Step 2: Convert to fraction form
   9,518.74/14,278.51 = 2,945.05/x
3. Step 3: Cross multiply
   9,518.74x = 14,278.51 × 2,945.05
4. Step 4: Simplify right side
   9,518.74x = 42,050,893.86
5. Step 5: Solve for x
   x = 42,050,893.86/9,518.74
6. Step 6: Final answer
   x = 4,417.70