Finding the Fourth Proportional to 90,018.02, 135,046.17 and 30,837.80

Step by Step Solution

1. Step 1: Write the proportion equation
   90,018.02 : 135,046.17 = 30,837.80 : x
2. Step 2: Convert to fraction form
   90,018.02/135,046.17 = 30,837.80/x
3. Step 3: Cross multiply
   90,018.02x = 135,046.17 × 30,837.80
4. Step 4: Simplify right side
   90,018.02x = 4,164,526,781.23
5. Step 5: Solve for x
   x = 4,164,526,781.23/90,018.02
6. Step 6: Final answer
   x = 46,263.26