Finding the Fourth Proportional to 191,364.72, 287,046.79 and 65,018.08

Step by Step Solution

1. Step 1: Write the proportion equation
   191,364.72 : 287,046.79 = 65,018.08 : x
2. Step 2: Convert to fraction form
   191,364.72/287,046.79 = 65,018.08/x
3. Step 3: Cross multiply
   191,364.72x = 287,046.79 × 65,018.08
4. Step 4: Simplify right side
   191,364.72x = 18,663,231,155.96
5. Step 5: Solve for x
   x = 18,663,231,155.96/191,364.72
6. Step 6: Final answer
   x = 97,527.02