Finding the Fourth Proportional to 9,415.92, 14,109.28 and 5,945.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,415.92 : 14,109.28 = 5,945.88 : x
2. Step 2: Convert to fraction form
   9,415.92/14,109.28 = 5,945.88/x
3. Step 3: Cross multiply
   9,415.92x = 14,109.28 × 5,945.88
4. Step 4: Simplify right side
   9,415.92x = 83,892,085.77
5. Step 5: Solve for x
   x = 83,892,085.77/9,415.92
6. Step 6: Final answer
   x = 8,909.60