Finding the Fourth Proportional to 76,616.28, 105,697.98 and 46,791

Step by Step Solution

1. Step 1: Write the proportion equation
   76,616.28 : 105,697.98 = 46,791 : x
2. Step 2: Convert to fraction form
   76,616.28/105,697.98 = 46,791/x
3. Step 3: Cross multiply
   76,616.28x = 105,697.98 × 46,791
4. Step 4: Simplify right side
   76,616.28x = 4,945,714,182.18
5. Step 5: Solve for x
   x = 4,945,714,182.18/76,616.28
6. Step 6: Final answer
   x = 64,551.74