Finding the Fourth Proportional to 76,667.37, 105,800.95 and 42,675.12

Step by Step Solution

1. Step 1: Write the proportion equation
   76,667.37 : 105,800.95 = 42,675.12 : x
2. Step 2: Convert to fraction form
   76,667.37/105,800.95 = 42,675.12/x
3. Step 3: Cross multiply
   76,667.37x = 105,800.95 × 42,675.12
4. Step 4: Simplify right side
   76,667.37x = 4,515,068,237.36
5. Step 5: Solve for x
   x = 4,515,068,237.36/76,667.37
6. Step 6: Final answer
   x = 58,891.65