Finding the Fourth Proportional to 312,196.54, 468,007.76 and 112,468.09

Step by Step Solution

1. Step 1: Write the proportion equation
   312,196.54 : 468,007.76 = 112,468.09 : x
2. Step 2: Convert to fraction form
   312,196.54/468,007.76 = 112,468.09/x
3. Step 3: Cross multiply
   312,196.54x = 468,007.76 × 112,468.09
4. Step 4: Simplify right side
   312,196.54x = 52,635,936,532.34
5. Step 5: Solve for x
   x = 52,635,936,532.34/312,196.54
6. Step 6: Final answer
   x = 168,598.72