Finding the Fourth Proportional to 109,766.21, 151,513.20 and 64,443.06

Step by Step Solution

1. Step 1: Write the proportion equation
   109,766.21 : 151,513.20 = 64,443.06 : x
2. Step 2: Convert to fraction form
   109,766.21/151,513.20 = 64,443.06/x
3. Step 3: Cross multiply
   109,766.21x = 151,513.20 × 64,443.06
4. Step 4: Simplify right side
   109,766.21x = 9,763,974,238.39
5. Step 5: Solve for x
   x = 9,763,974,238.39/109,766.21
6. Step 6: Final answer
   x = 88,952.46