Finding the Fourth Proportional to 76,667.14, 105,799.84 and 42,675.09

Step by Step Solution

1. Step 1: Write the proportion equation
   76,667.14 : 105,799.84 = 42,675.09 : x
2. Step 2: Convert to fraction form
   76,667.14/105,799.84 = 42,675.09/x
3. Step 3: Cross multiply
   76,667.14x = 105,799.84 × 42,675.09
4. Step 4: Simplify right side
   76,667.14x = 4,515,017,693.99
5. Step 5: Solve for x
   x = 4,515,017,693.99/76,667.14
6. Step 6: Final answer
   x = 58,891.17