Finding the Fourth Proportional to 90,305, 124,617.06 and 50,018.60

Step by Step Solution

1. Step 1: Write the proportion equation
   90,305 : 124,617.06 = 50,018.60 : x
2. Step 2: Convert to fraction form
   90,305/124,617.06 = 50,018.60/x
3. Step 3: Cross multiply
   90,305x = 124,617.06 × 50,018.60
4. Step 4: Simplify right side
   90,305x = 6,233,170,877.32
5. Step 5: Solve for x
   x = 6,233,170,877.32/90,305
6. Step 6: Final answer
   x = 69,023.54