Finding the Fourth Proportional to 78,037.56, 107,665.48 and 50,801.21

Step by Step Solution

1. Step 1: Write the proportion equation
   78,037.56 : 107,665.48 = 50,801.21 : x
2. Step 2: Convert to fraction form
   78,037.56/107,665.48 = 50,801.21/x
3. Step 3: Cross multiply
   78,037.56x = 107,665.48 × 50,801.21
4. Step 4: Simplify right side
   78,037.56x = 5,469,536,302.39
5. Step 5: Solve for x
   x = 5,469,536,302.39/78,037.56
6. Step 6: Final answer
   x = 70,088.51