Finding the Fourth Proportional to 118,697.84, 163,802.23 and 64,983.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,697.84 : 163,802.23 = 64,983.76 : x
2. Step 2: Convert to fraction form
   118,697.84/163,802.23 = 64,983.76/x
3. Step 3: Cross multiply
   118,697.84x = 163,802.23 × 64,983.76
4. Step 4: Simplify right side
   118,697.84x = 10,644,484,229.82
5. Step 5: Solve for x
   x = 10,644,484,229.82/118,697.84
6. Step 6: Final answer
   x = 89,677.15