Finding the Fourth Proportional to 201,061.91, 277,311.69 and 136,580.87

Step by Step Solution

1. Step 1: Write the proportion equation
   201,061.91 : 277,311.69 = 136,580.87 : x
2. Step 2: Convert to fraction form
   201,061.91/277,311.69 = 136,580.87/x
3. Step 3: Cross multiply
   201,061.91x = 277,311.69 × 136,580.87
4. Step 4: Simplify right side
   201,061.91x = 37,875,471,881.37
5. Step 5: Solve for x
   x = 37,875,471,881.37/201,061.91
6. Step 6: Final answer
   x = 188,377.16