Finding the Fourth Proportional to 105,077.94, 145,016.16 and 59,770.11

Step by Step Solution

1. Step 1: Write the proportion equation
   105,077.94 : 145,016.16 = 59,770.11 : x
2. Step 2: Convert to fraction form
   105,077.94/145,016.16 = 59,770.11/x
3. Step 3: Cross multiply
   105,077.94x = 145,016.16 × 59,770.11
4. Step 4: Simplify right side
   105,077.94x = 8,667,631,834.98
5. Step 5: Solve for x
   x = 8,667,631,834.98/105,077.94
6. Step 6: Final answer
   x = 82,487.65