Finding the Fourth Proportional to 116,619.02, 160,932.46 and 64,935.76

Step by Step Solution

1. Step 1: Write the proportion equation
   116,619.02 : 160,932.46 = 64,935.76 : x
2. Step 2: Convert to fraction form
   116,619.02/160,932.46 = 64,935.76/x
3. Step 3: Cross multiply
   116,619.02x = 160,932.46 × 64,935.76
4. Step 4: Simplify right side
   116,619.02x = 10,450,271,598.77
5. Step 5: Solve for x
   x = 10,450,271,598.77/116,619.02
6. Step 6: Final answer
   x = 89,610.35