Finding the Fourth Proportional to 118,578.72, 177,897.24 and 108,858.72

Step by Step Solution

1. Step 1: Write the proportion equation
   118,578.72 : 177,897.24 = 108,858.72 : x
2. Step 2: Convert to fraction form
   118,578.72/177,897.24 = 108,858.72/x
3. Step 3: Cross multiply
   118,578.72x = 177,897.24 × 108,858.72
4. Step 4: Simplify right side
   118,578.72x = 19,365,665,837.93
5. Step 5: Solve for x
   x = 19,365,665,837.93/118,578.72
6. Step 6: Final answer
   x = 163,314.85