Finding the Fourth Proportional to 76,651, 105,778.50 and 43,117

Step by Step Solution

1. Step 1: Write the proportion equation
   76,651 : 105,778.50 = 43,117 : x
2. Step 2: Convert to fraction form
   76,651/105,778.50 = 43,117/x
3. Step 3: Cross multiply
   76,651x = 105,778.50 × 43,117
4. Step 4: Simplify right side
   76,651x = 4,560,851,584.50
5. Step 5: Solve for x
   x = 4,560,851,584.50/76,651
6. Step 6: Final answer
   x = 59,501.53