Finding the Fourth Proportional to 103,061.45, 154,390.83 and 71,034.83

Step by Step Solution

1. Step 1: Write the proportion equation
   103,061.45 : 154,390.83 = 71,034.83 : x
2. Step 2: Convert to fraction form
   103,061.45/154,390.83 = 71,034.83/x
3. Step 3: Cross multiply
   103,061.45x = 154,390.83 × 71,034.83
4. Step 4: Simplify right side
   103,061.45x = 10,967,126,362.61
5. Step 5: Solve for x
   x = 10,967,126,362.61/103,061.45
6. Step 6: Final answer
   x = 106,413.47