Finding the Fourth Proportional to 64,234.35, 88,584.50 and 55,156.62

Step by Step Solution

1. Step 1: Write the proportion equation
   64,234.35 : 88,584.50 = 55,156.62 : x
2. Step 2: Convert to fraction form
   64,234.35/88,584.50 = 55,156.62/x
3. Step 3: Cross multiply
   64,234.35x = 88,584.50 × 55,156.62
4. Step 4: Simplify right side
   64,234.35x = 4,886,021,408.86
5. Step 5: Solve for x
   x = 4,886,021,408.86/64,234.35
6. Step 6: Final answer
   x = 76,065.56