Finding the Fourth Proportional to 191,499.82, 287,101.72 and 96,681.20

Step by Step Solution

1. Step 1: Write the proportion equation
   191,499.82 : 287,101.72 = 96,681.20 : x
2. Step 2: Convert to fraction form
   191,499.82/287,101.72 = 96,681.20/x
3. Step 3: Cross multiply
   191,499.82x = 287,101.72 × 96,681.20
4. Step 4: Simplify right side
   191,499.82x = 27,757,338,811.66
5. Step 5: Solve for x
   x = 27,757,338,811.66/191,499.82
6. Step 6: Final answer
   x = 144,947.08