Finding the Fourth Proportional to 118,424.89, 163,419.15 and 67,439.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,424.89 : 163,419.15 = 67,439.76 : x
2. Step 2: Convert to fraction form
   118,424.89/163,419.15 = 67,439.76/x
3. Step 3: Cross multiply
   118,424.89x = 163,419.15 × 67,439.76
4. Step 4: Simplify right side
   118,424.89x = 11,020,948,255.40
5. Step 5: Solve for x
   x = 11,020,948,255.40/118,424.89
6. Step 6: Final answer
   x = 93,062.77