Finding the Fourth Proportional to 99,919.31, 150,069.72 and 57,883.82

Step by Step Solution

1. Step 1: Write the proportion equation
   99,919.31 : 150,069.72 = 57,883.82 : x
2. Step 2: Convert to fraction form
   99,919.31/150,069.72 = 57,883.82/x
3. Step 3: Cross multiply
   99,919.31x = 150,069.72 × 57,883.82
4. Step 4: Simplify right side
   99,919.31x = 8,686,608,659.93
5. Step 5: Solve for x
   x = 8,686,608,659.93/99,919.31
6. Step 6: Final answer
   x = 86,936.24