Finding the Fourth Proportional to 116,881, 161,295.78 and 63,889

Step by Step Solution

1. Step 1: Write the proportion equation
   116,881 : 161,295.78 = 63,889 : x
2. Step 2: Convert to fraction form
   116,881/161,295.78 = 63,889/x
3. Step 3: Cross multiply
   116,881x = 161,295.78 × 63,889
4. Step 4: Simplify right side
   116,881x = 10,305,026,088.42
5. Step 5: Solve for x
   x = 10,305,026,088.42/116,881
6. Step 6: Final answer
   x = 88,166.82