Finding the Fourth Proportional to 190,100.94, 262,347.57 and 105,217.98

Step by Step Solution

1. Step 1: Write the proportion equation
   190,100.94 : 262,347.57 = 105,217.98 : x
2. Step 2: Convert to fraction form
   190,100.94/262,347.57 = 105,217.98/x
3. Step 3: Cross multiply
   190,100.94x = 262,347.57 × 105,217.98
4. Step 4: Simplify right side
   190,100.94x = 27,603,681,373.31
5. Step 5: Solve for x
   x = 27,603,681,373.31/190,100.94
6. Step 6: Final answer
   x = 145,205.39