Finding the Fourth Proportional to 105,030.23, 144,954.18 and 59,715.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,030.23 : 144,954.18 = 59,715.05 : x
2. Step 2: Convert to fraction form
   105,030.23/144,954.18 = 59,715.05/x
3. Step 3: Cross multiply
   105,030.23x = 144,954.18 × 59,715.05
4. Step 4: Simplify right side
   105,030.23x = 8,655,946,106.41
5. Step 5: Solve for x
   x = 8,655,946,106.41/105,030.23
6. Step 6: Final answer
   x = 82,413.85