Finding the Fourth Proportional to 116,419.72, 160,672.53 and 64,741.97

Step by Step Solution

1. Step 1: Write the proportion equation
   116,419.72 : 160,672.53 = 64,741.97 : x
2. Step 2: Convert to fraction form
   116,419.72/160,672.53 = 64,741.97/x
3. Step 3: Cross multiply
   116,419.72x = 160,672.53 × 64,741.97
4. Step 4: Simplify right side
   116,419.72x = 10,402,256,397.37
5. Step 5: Solve for x
   x = 10,402,256,397.37/116,419.72
6. Step 6: Final answer
   x = 89,351.33