Finding the Fourth Proportional to 118,018.76, 162,863.83 and 64,304.21

Step by Step Solution

1. Step 1: Write the proportion equation
   118,018.76 : 162,863.83 = 64,304.21 : x
2. Step 2: Convert to fraction form
   118,018.76/162,863.83 = 64,304.21/x
3. Step 3: Cross multiply
   118,018.76x = 162,863.83 × 64,304.21
4. Step 4: Simplify right side
   118,018.76x = 10,472,830,172.12
5. Step 5: Solve for x
   x = 10,472,830,172.12/118,018.76
6. Step 6: Final answer
   x = 88,738.69