Finding the Fourth Proportional to 117,289, 161,858.82 and 64,297

Step by Step Solution

1. Step 1: Write the proportion equation
   117,289 : 161,858.82 = 64,297 : x
2. Step 2: Convert to fraction form
   117,289/161,858.82 = 64,297/x
3. Step 3: Cross multiply
   117,289x = 161,858.82 × 64,297
4. Step 4: Simplify right side
   117,289x = 10,407,036,549.54
5. Step 5: Solve for x
   x = 10,407,036,549.54/117,289
6. Step 6: Final answer
   x = 88,729.86