Finding the Fourth Proportional to 118,419.40, 163,418.82 and 63,971.59

Step by Step Solution

1. Step 1: Write the proportion equation
   118,419.40 : 163,418.82 = 63,971.59 : x
2. Step 2: Convert to fraction form
   118,419.40/163,418.82 = 63,971.59/x
3. Step 3: Cross multiply
   118,419.40x = 163,418.82 × 63,971.59
4. Step 4: Simplify right side
   118,419.40x = 10,454,161,409.29
5. Step 5: Solve for x
   x = 10,454,161,409.29/118,419.40
6. Step 6: Final answer
   x = 88,280.82