Finding the Fourth Proportional to 224,485.43, 336,435.72 and 91,209.87

Step by Step Solution

1. Step 1: Write the proportion equation
   224,485.43 : 336,435.72 = 91,209.87 : x
2. Step 2: Convert to fraction form
   224,485.43/336,435.72 = 91,209.87/x
3. Step 3: Cross multiply
   224,485.43x = 336,435.72 × 91,209.87
4. Step 4: Simplify right side
   224,485.43x = 30,686,258,284.56
5. Step 5: Solve for x
   x = 30,686,258,284.56/224,485.43
6. Step 6: Final answer
   x = 136,695.99