Finding the Fourth Proportional to 105,071.37, 144,992.55 and 59,760.36

Step by Step Solution

1. Step 1: Write the proportion equation
   105,071.37 : 144,992.55 = 59,760.36 : x
2. Step 2: Convert to fraction form
   105,071.37/144,992.55 = 59,760.36/x
3. Step 3: Cross multiply
   105,071.37x = 144,992.55 × 59,760.36
4. Step 4: Simplify right side
   105,071.37x = 8,664,806,985.32
5. Step 5: Solve for x
   x = 8,664,806,985.32/105,071.37
6. Step 6: Final answer
   x = 82,465.92