Finding the Fourth Proportional to 110,216.16, 152,132.67 and 64,890.54

Step by Step Solution

1. Step 1: Write the proportion equation
   110,216.16 : 152,132.67 = 64,890.54 : x
2. Step 2: Convert to fraction form
   110,216.16/152,132.67 = 64,890.54/x
3. Step 3: Cross multiply
   110,216.16x = 152,132.67 × 64,890.54
4. Step 4: Simplify right side
   110,216.16x = 9,871,971,107.94
5. Step 5: Solve for x
   x = 9,871,971,107.94/110,216.16
6. Step 6: Final answer
   x = 89,569.18