Finding the Fourth Proportional to 105,025.61, 144,929.58 and 59,697.29

Step by Step Solution

1. Step 1: Write the proportion equation
   105,025.61 : 144,929.58 = 59,697.29 : x
2. Step 2: Convert to fraction form
   105,025.61/144,929.58 = 59,697.29/x
3. Step 3: Cross multiply
   105,025.61x = 144,929.58 × 59,697.29
4. Step 4: Simplify right side
   105,025.61x = 8,651,903,166.84
5. Step 5: Solve for x
   x = 8,651,903,166.84/105,025.61
6. Step 6: Final answer
   x = 82,378.99