Finding the Fourth Proportional to 105,072.87, 144,994.62 and 59,761.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,072.87 : 144,994.62 = 59,761.86 : x
2. Step 2: Convert to fraction form
   105,072.87/144,994.62 = 59,761.86/x
3. Step 3: Cross multiply
   105,072.87x = 144,994.62 × 59,761.86
4. Step 4: Simplify right side
   105,072.87x = 8,665,148,181.19
5. Step 5: Solve for x
   x = 8,665,148,181.19/105,072.87
6. Step 6: Final answer
   x = 82,467.99