Finding the Fourth Proportional to 69,624.72, 96,080.76 and 39,408.96

Step by Step Solution

1. Step 1: Write the proportion equation
   69,624.72 : 96,080.76 = 39,408.96 : x
2. Step 2: Convert to fraction form
   69,624.72/96,080.76 = 39,408.96/x
3. Step 3: Cross multiply
   69,624.72x = 96,080.76 × 39,408.96
4. Step 4: Simplify right side
   69,624.72x = 3,786,442,827.61
5. Step 5: Solve for x
   x = 3,786,442,827.61/69,624.72
6. Step 6: Final answer
   x = 54,383.60