Finding the Fourth Proportional to 76,146.09, 105,091.38 and 45,947.70

Step by Step Solution

1. Step 1: Write the proportion equation
   76,146.09 : 105,091.38 = 45,947.70 : x
2. Step 2: Convert to fraction form
   76,146.09/105,091.38 = 45,947.70/x
3. Step 3: Cross multiply
   76,146.09x = 105,091.38 × 45,947.70
4. Step 4: Simplify right side
   76,146.09x = 4,828,707,200.83
5. Step 5: Solve for x
   x = 4,828,707,200.83/76,146.09
6. Step 6: Final answer
   x = 63,413.72