Finding the Fourth Proportional to 116,019.74, 160,097.46 and 64,338.32

Step by Step Solution

1. Step 1: Write the proportion equation
   116,019.74 : 160,097.46 = 64,338.32 : x
2. Step 2: Convert to fraction form
   116,019.74/160,097.46 = 64,338.32/x
3. Step 3: Cross multiply
   116,019.74x = 160,097.46 × 64,338.32
4. Step 4: Simplify right side
   116,019.74x = 10,300,401,612.67
5. Step 5: Solve for x
   x = 10,300,401,612.67/116,019.74
6. Step 6: Final answer
   x = 88,781.46