Finding the Fourth Proportional to 76,729.30, 105,891.74 and 46,515.89

Step by Step Solution

1. Step 1: Write the proportion equation
   76,729.30 : 105,891.74 = 46,515.89 : x
2. Step 2: Convert to fraction form
   76,729.30/105,891.74 = 46,515.89/x
3. Step 3: Cross multiply
   76,729.30x = 105,891.74 × 46,515.89
4. Step 4: Simplify right side
   76,729.30x = 4,925,648,910.77
5. Step 5: Solve for x
   x = 4,925,648,910.77/76,729.30
6. Step 6: Final answer
   x = 64,195.15