Finding the Fourth Proportional to 191,796.68, 287,326.72 and 107,300.77

Step by Step Solution

1. Step 1: Write the proportion equation
   191,796.68 : 287,326.72 = 107,300.77 : x
2. Step 2: Convert to fraction form
   191,796.68/287,326.72 = 107,300.77/x
3. Step 3: Cross multiply
   191,796.68x = 287,326.72 × 107,300.77
4. Step 4: Simplify right side
   191,796.68x = 30,830,378,297.57
5. Step 5: Solve for x
   x = 30,830,378,297.57/191,796.68
6. Step 6: Final answer
   x = 160,745.11