Finding the Fourth Proportional to 148,627.20, 222,915.12 and 42,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   148,627.20 : 222,915.12 = 42,018.72 : x
2. Step 2: Convert to fraction form
   148,627.20/222,915.12 = 42,018.72/x
3. Step 3: Cross multiply
   148,627.20x = 222,915.12 × 42,018.72
4. Step 4: Simplify right side
   148,627.20x = 9,366,608,011.05
5. Step 5: Solve for x
   x = 9,366,608,011.05/148,627.20
6. Step 6: Final answer
   x = 63,020.82