Finding the Fourth Proportional to 76,355, 105,381.42 and 46,564.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,355 : 105,381.42 = 46,564.28 : x
2. Step 2: Convert to fraction form
   76,355/105,381.42 = 46,564.28/x
3. Step 3: Cross multiply
   76,355x = 105,381.42 × 46,564.28
4. Step 4: Simplify right side
   76,355x = 4,907,009,947.68
5. Step 5: Solve for x
   x = 4,907,009,947.68/76,355
6. Step 6: Final answer
   x = 64,265.73