Finding the Fourth Proportional to 118,772.74, 163,908.74 and 65,057.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,772.74 : 163,908.74 = 65,057.76 : x
2. Step 2: Convert to fraction form
   118,772.74/163,908.74 = 65,057.76/x
3. Step 3: Cross multiply
   118,772.74x = 163,908.74 × 65,057.76
4. Step 4: Simplify right side
   118,772.74x = 10,663,535,468.82
5. Step 5: Solve for x
   x = 10,663,535,468.82/118,772.74
6. Step 6: Final answer
   x = 89,781.00