Finding the Fourth Proportional to 116,962.09, 161,408.61 and 64,575.70

Step by Step Solution

1. Step 1: Write the proportion equation
   116,962.09 : 161,408.61 = 64,575.70 : x
2. Step 2: Convert to fraction form
   116,962.09/161,408.61 = 64,575.70/x
3. Step 3: Cross multiply
   116,962.09x = 161,408.61 × 64,575.70
4. Step 4: Simplify right side
   116,962.09x = 10,423,073,976.78
5. Step 5: Solve for x
   x = 10,423,073,976.78/116,962.09
6. Step 6: Final answer
   x = 89,114.98