Finding the Fourth Proportional to 224,355.42, 336,537.89 and 91,143.87

Step by Step Solution

1. Step 1: Write the proportion equation
   224,355.42 : 336,537.89 = 91,143.87 : x
2. Step 2: Convert to fraction form
   224,355.42/336,537.89 = 91,143.87/x
3. Step 3: Cross multiply
   224,355.42x = 336,537.89 × 91,143.87
4. Step 4: Simplify right side
   224,355.42x = 30,673,364,320.29
5. Step 5: Solve for x
   x = 30,673,364,320.29/224,355.42
6. Step 6: Final answer
   x = 136,717.73