Finding the Fourth Proportional to 397,627.94, 596,422.47 and 148,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   397,627.94 : 596,422.47 = 148,290.50 : x
2. Step 2: Convert to fraction form
   397,627.94/596,422.47 = 148,290.50/x
3. Step 3: Cross multiply
   397,627.94x = 596,422.47 × 148,290.50
4. Step 4: Simplify right side
   397,627.94x = 88,443,786,287.54
5. Step 5: Solve for x
   x = 88,443,786,287.54/397,627.94
6. Step 6: Final answer
   x = 222,428.50