Finding the Fourth Proportional to 99,758.33, 137,662.22 and 54,435.18

Step by Step Solution

1. Step 1: Write the proportion equation
   99,758.33 : 137,662.22 = 54,435.18 : x
2. Step 2: Convert to fraction form
   99,758.33/137,662.22 = 54,435.18/x
3. Step 3: Cross multiply
   99,758.33x = 137,662.22 × 54,435.18
4. Step 4: Simplify right side
   99,758.33x = 7,493,667,968.96
5. Step 5: Solve for x
   x = 7,493,667,968.96/99,758.33
6. Step 6: Final answer
   x = 75,118.22