Finding the Fourth Proportional to 83,783.08, 115,607.76 and 49,778.98

Step by Step Solution

1. Step 1: Write the proportion equation
   83,783.08 : 115,607.76 = 49,778.98 : x
2. Step 2: Convert to fraction form
   83,783.08/115,607.76 = 49,778.98/x
3. Step 3: Cross multiply
   83,783.08x = 115,607.76 × 49,778.98
4. Step 4: Simplify right side
   83,783.08x = 5,754,836,222.34
5. Step 5: Solve for x
   x = 5,754,836,222.34/83,783.08
6. Step 6: Final answer
   x = 68,687.34