Finding the Fourth Proportional to 105,592.06, 145,715.55 and 57,845.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,592.06 : 145,715.55 = 57,845.73 : x
2. Step 2: Convert to fraction form
   105,592.06/145,715.55 = 57,845.73/x
3. Step 3: Cross multiply
   105,592.06x = 145,715.55 × 57,845.73
4. Step 4: Simplify right side
   105,592.06x = 8,429,022,362.10
5. Step 5: Solve for x
   x = 8,429,022,362.10/105,592.06
6. Step 6: Final answer
   x = 79,826.29