Finding the Fourth Proportional to 135,667.35, 187,196.81 and 81,916.38

Step by Step Solution

1. Step 1: Write the proportion equation
   135,667.35 : 187,196.81 = 81,916.38 : x
2. Step 2: Convert to fraction form
   135,667.35/187,196.81 = 81,916.38/x
3. Step 3: Cross multiply
   135,667.35x = 187,196.81 × 81,916.38
4. Step 4: Simplify right side
   135,667.35x = 15,334,484,613.17
5. Step 5: Solve for x
   x = 15,334,484,613.17/135,667.35
6. Step 6: Final answer
   x = 113,030.03