Finding the Fourth Proportional to 100,185.33, 138,255.82 and 54,244.83

Step by Step Solution

1. Step 1: Write the proportion equation
   100,185.33 : 138,255.82 = 54,244.83 : x
2. Step 2: Convert to fraction form
   100,185.33/138,255.82 = 54,244.83/x
3. Step 3: Cross multiply
   100,185.33x = 138,255.82 × 54,244.83
4. Step 4: Simplify right side
   100,185.33x = 7,499,663,452.41
5. Step 5: Solve for x
   x = 7,499,663,452.41/100,185.33
6. Step 6: Final answer
   x = 74,857.90