Finding the Fourth Proportional to 76,603.32, 105,713.82 and 46,388.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,603.32 : 105,713.82 = 46,388.28 : x
2. Step 2: Convert to fraction form
   76,603.32/105,713.82 = 46,388.28/x
3. Step 3: Cross multiply
   76,603.32x = 105,713.82 × 46,388.28
4. Step 4: Simplify right side
   76,603.32x = 4,903,882,282.03
5. Step 5: Solve for x
   x = 4,903,882,282.03/76,603.32
6. Step 6: Final answer
   x = 64,016.58