Finding the Fourth Proportional to 110,565.82, 152,570.29 and 64,636.20

Step by Step Solution

1. Step 1: Write the proportion equation
   110,565.82 : 152,570.29 = 64,636.20 : x
2. Step 2: Convert to fraction form
   110,565.82/152,570.29 = 64,636.20/x
3. Step 3: Cross multiply
   110,565.82x = 152,570.29 × 64,636.20
4. Step 4: Simplify right side
   110,565.82x = 9,861,563,778.50
5. Step 5: Solve for x
   x = 9,861,563,778.50/110,565.82
6. Step 6: Final answer
   x = 89,191.79