Finding the Fourth Proportional to 224,546.58, 336,699.59 and 91,358.28

Step by Step Solution

1. Step 1: Write the proportion equation
   224,546.58 : 336,699.59 = 91,358.28 : x
2. Step 2: Convert to fraction form
   224,546.58/336,699.59 = 91,358.28/x
3. Step 3: Cross multiply
   224,546.58x = 336,699.59 × 91,358.28
4. Step 4: Simplify right side
   224,546.58x = 30,760,294,962.31
5. Step 5: Solve for x
   x = 30,760,294,962.31/224,546.58
6. Step 6: Final answer
   x = 136,988.48