Finding the Fourth Proportional to 224,322.15, 336,546.78 and 91,297.89

Step by Step Solution

1. Step 1: Write the proportion equation
   224,322.15 : 336,546.78 = 91,297.89 : x
2. Step 2: Convert to fraction form
   224,322.15/336,546.78 = 91,297.89/x
3. Step 3: Cross multiply
   224,322.15x = 336,546.78 × 91,297.89
4. Step 4: Simplify right side
   224,322.15x = 30,726,010,900.29
5. Step 5: Solve for x
   x = 30,726,010,900.29/224,322.15
6. Step 6: Final answer
   x = 136,972.70