Finding the Fourth Proportional to 185,551.34, 256,058.55 and 100,667.78

Step by Step Solution

1. Step 1: Write the proportion equation
   185,551.34 : 256,058.55 = 100,667.78 : x
2. Step 2: Convert to fraction form
   185,551.34/256,058.55 = 100,667.78/x
3. Step 3: Cross multiply
   185,551.34x = 256,058.55 × 100,667.78
4. Step 4: Simplify right side
   185,551.34x = 25,776,845,778.52
5. Step 5: Solve for x
   x = 25,776,845,778.52/185,551.34
6. Step 6: Final answer
   x = 138,920.29