Finding the Fourth Proportional to 78,091.53, 107,764.34 and 43,636.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,091.53 : 107,764.34 = 43,636.56 : x
2. Step 2: Convert to fraction form
   78,091.53/107,764.34 = 43,636.56/x
3. Step 3: Cross multiply
   78,091.53x = 107,764.34 × 43,636.56
4. Step 4: Simplify right side
   78,091.53x = 4,702,464,870.09
5. Step 5: Solve for x
   x = 4,702,464,870.09/78,091.53
6. Step 6: Final answer
   x = 60,217.35