Finding the Fourth Proportional to 90,093.93, 135,153.31 and 30,921.91

Step by Step Solution

1. Step 1: Write the proportion equation
   90,093.93 : 135,153.31 = 30,921.91 : x
2. Step 2: Convert to fraction form
   90,093.93/135,153.31 = 30,921.91/x
3. Step 3: Cross multiply
   90,093.93x = 135,153.31 × 30,921.91
4. Step 4: Simplify right side
   90,093.93x = 4,179,198,488.02
5. Step 5: Solve for x
   x = 4,179,198,488.02/90,093.93
6. Step 6: Final answer
   x = 46,387.13