Finding the Fourth Proportional to 162,836.42, 224,688.12 and 91,219.46

Step by Step Solution

1. Step 1: Write the proportion equation
   162,836.42 : 224,688.12 = 91,219.46 : x
2. Step 2: Convert to fraction form
   162,836.42/224,688.12 = 91,219.46/x
3. Step 3: Cross multiply
   162,836.42x = 224,688.12 × 91,219.46
4. Step 4: Simplify right side
   162,836.42x = 20,495,927,851.37
5. Step 5: Solve for x
   x = 20,495,927,851.37/162,836.42
6. Step 6: Final answer
   x = 125,868.21