Finding the Fourth Proportional to 186,667.29, 280,091.04 and 91,846.05

Step by Step Solution

1. Step 1: Write the proportion equation
   186,667.29 : 280,091.04 = 91,846.05 : x
2. Step 2: Convert to fraction form
   186,667.29/280,091.04 = 91,846.05/x
3. Step 3: Cross multiply
   186,667.29x = 280,091.04 × 91,846.05
4. Step 4: Simplify right side
   186,667.29x = 25,725,255,664.39
5. Step 5: Solve for x
   x = 25,725,255,664.39/186,667.29
6. Step 6: Final answer
   x = 137,813.41