Finding the Fourth Proportional to 99,682.94, 137,559.38 and 56,667.14

Step by Step Solution

1. Step 1: Write the proportion equation
   99,682.94 : 137,559.38 = 56,667.14 : x
2. Step 2: Convert to fraction form
   99,682.94/137,559.38 = 56,667.14/x
3. Step 3: Cross multiply
   99,682.94x = 137,559.38 × 56,667.14
4. Step 4: Simplify right side
   99,682.94x = 7,795,096,098.64
5. Step 5: Solve for x
   x = 7,795,096,098.64/99,682.94
6. Step 6: Final answer
   x = 78,198.90