Finding the Fourth Proportional to 116,618.02, 160,931.08 and 64,934.76

Step by Step Solution

1. Step 1: Write the proportion equation
   116,618.02 : 160,931.08 = 64,934.76 : x
2. Step 2: Convert to fraction form
   116,618.02/160,931.08 = 64,934.76/x
3. Step 3: Cross multiply
   116,618.02x = 160,931.08 × 64,934.76
4. Step 4: Simplify right side
   116,618.02x = 10,450,021,558.37
5. Step 5: Solve for x
   x = 10,450,021,558.37/116,618.02
6. Step 6: Final answer
   x = 89,608.98