Finding the Fourth Proportional to 76,717.56, 105,870.18 and 43,184.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,717.56 : 105,870.18 = 43,184.28 : x
2. Step 2: Convert to fraction form
   76,717.56/105,870.18 = 43,184.28/x
3. Step 3: Cross multiply
   76,717.56x = 105,870.18 × 43,184.28
4. Step 4: Simplify right side
   76,717.56x = 4,571,927,496.77
5. Step 5: Solve for x
   x = 4,571,927,496.77/76,717.56
6. Step 6: Final answer
   x = 59,594.28