Finding the Fourth Proportional to 82,238.64, 123,228.74 and 63,564.40

Step by Step Solution

1. Step 1: Write the proportion equation
   82,238.64 : 123,228.74 = 63,564.40 : x
2. Step 2: Convert to fraction form
   82,238.64/123,228.74 = 63,564.40/x
3. Step 3: Cross multiply
   82,238.64x = 123,228.74 × 63,564.40
4. Step 4: Simplify right side
   82,238.64x = 7,832,960,920.86
5. Step 5: Solve for x
   x = 7,832,960,920.86/82,238.64
6. Step 6: Final answer
   x = 95,246.72