Finding the Fourth Proportional to 224,321.52, 336,528.72 and 91,201.80

Step by Step Solution

1. Step 1: Write the proportion equation
   224,321.52 : 336,528.72 = 91,201.80 : x
2. Step 2: Convert to fraction form
   224,321.52/336,528.72 = 91,201.80/x
3. Step 3: Cross multiply
   224,321.52x = 336,528.72 × 91,201.80
4. Step 4: Simplify right side
   224,321.52x = 30,692,025,015.70
5. Step 5: Solve for x
   x = 30,692,025,015.70/224,321.52
6. Step 6: Final answer
   x = 136,821.58