Finding the Fourth Proportional to 89,984.51, 134,977.47 and 30,820.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,984.51 : 134,977.47 = 30,820.69 : x
2. Step 2: Convert to fraction form
   89,984.51/134,977.47 = 30,820.69/x
3. Step 3: Cross multiply
   89,984.51x = 134,977.47 × 30,820.69
4. Step 4: Simplify right side
   89,984.51x = 4,160,098,759.85
5. Step 5: Solve for x
   x = 4,160,098,759.85/89,984.51
6. Step 6: Final answer
   x = 46,231.28