Finding the Fourth Proportional to 76,697.31, 105,856.97 and 46,499.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,697.31 : 105,856.97 = 46,499.10 : x
2. Step 2: Convert to fraction form
   76,697.31/105,856.97 = 46,499.10/x
3. Step 3: Cross multiply
   76,697.31x = 105,856.97 × 46,499.10
4. Step 4: Simplify right side
   76,697.31x = 4,922,253,601.23
5. Step 5: Solve for x
   x = 4,922,253,601.23/76,697.31
6. Step 6: Final answer
   x = 64,177.66