Finding the Fourth Proportional to 191,032.38, 286,154.78 and 111,906.72

Step by Step Solution

1. Step 1: Write the proportion equation
   191,032.38 : 286,154.78 = 111,906.72 : x
2. Step 2: Convert to fraction form
   191,032.38/286,154.78 = 111,906.72/x
3. Step 3: Cross multiply
   191,032.38x = 286,154.78 × 111,906.72
4. Step 4: Simplify right side
   191,032.38x = 32,022,642,282.59
5. Step 5: Solve for x
   x = 32,022,642,282.59/191,032.38
6. Step 6: Final answer
   x = 167,629.39