Finding the Fourth Proportional to 191,667.16, 287,132.24 and 107,171.10

Step by Step Solution

1. Step 1: Write the proportion equation
   191,667.16 : 287,132.24 = 107,171.10 : x
2. Step 2: Convert to fraction form
   191,667.16/287,132.24 = 107,171.10/x
3. Step 3: Cross multiply
   191,667.16x = 287,132.24 × 107,171.10
4. Step 4: Simplify right side
   191,667.16x = 30,772,278,274.19
5. Step 5: Solve for x
   x = 30,772,278,274.19/191,667.16
6. Step 6: Final answer
   x = 160,550.60