Finding the Fourth Proportional to 162,460.64, 224,180.40 and 90,830.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162,460.64 : 224,180.40 = 90,830.72 : x
2. Step 2: Convert to fraction form
   162,460.64/224,180.40 = 90,830.72/x
3. Step 3: Cross multiply
   162,460.64x = 224,180.40 × 90,830.72
4. Step 4: Simplify right side
   162,460.64x = 20,362,467,141.89
5. Step 5: Solve for x
   x = 20,362,467,141.89/162,460.64
6. Step 6: Final answer
   x = 125,337.85