Finding the Fourth Proportional to 303,900.68, 455,870.47 and 116,912.18

Step by Step Solution

1. Step 1: Write the proportion equation
   303,900.68 : 455,870.47 = 116,912.18 : x
2. Step 2: Convert to fraction form
   303,900.68/455,870.47 = 116,912.18/x
3. Step 3: Cross multiply
   303,900.68x = 455,870.47 × 116,912.18
4. Step 4: Simplify right side
   303,900.68x = 53,296,810,445.32
5. Step 5: Solve for x
   x = 53,296,810,445.32/303,900.68
6. Step 6: Final answer
   x = 175,375.75