Finding the Fourth Proportional to 123,445.72, 185,097.30 and 108,684.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,445.72 : 185,097.30 = 108,684.28 : x
2. Step 2: Convert to fraction form
   123,445.72/185,097.30 = 108,684.28/x
3. Step 3: Cross multiply
   123,445.72x = 185,097.30 × 108,684.28
4. Step 4: Simplify right side
   123,445.72x = 20,117,166,780.44
5. Step 5: Solve for x
   x = 20,117,166,780.44/123,445.72
6. Step 6: Final answer
   x = 162,963.66