Finding the Fourth Proportional to 116,420.29, 160,658.08 and 64,735.33

Step by Step Solution

1. Step 1: Write the proportion equation
   116,420.29 : 160,658.08 = 64,735.33 : x
2. Step 2: Convert to fraction form
   116,420.29/160,658.08 = 64,735.33/x
3. Step 3: Cross multiply
   116,420.29x = 160,658.08 × 64,735.33
4. Step 4: Simplify right side
   116,420.29x = 10,400,253,476.00
5. Step 5: Solve for x
   x = 10,400,253,476.00/116,420.29
6. Step 6: Final answer
   x = 89,333.69