Finding the Fourth Proportional to 191,414.32, 287,141.12 and 73,185.10

Step by Step Solution

1. Step 1: Write the proportion equation
   191,414.32 : 287,141.12 = 73,185.10 : x
2. Step 2: Convert to fraction form
   191,414.32/287,141.12 = 73,185.10/x
3. Step 3: Cross multiply
   191,414.32x = 287,141.12 × 73,185.10
4. Step 4: Simplify right side
   191,414.32x = 21,014,451,581.31
5. Step 5: Solve for x
   x = 21,014,451,581.31/191,414.32
6. Step 6: Final answer
   x = 109,785.16