Finding the Fourth Proportional to 56,658.78, 78,185.79 and 32,783.76

Step by Step Solution

1. Step 1: Write the proportion equation
   56,658.78 : 78,185.79 = 32,783.76 : x
2. Step 2: Convert to fraction form
   56,658.78/78,185.79 = 32,783.76/x
3. Step 3: Cross multiply
   56,658.78x = 78,185.79 × 32,783.76
4. Step 4: Simplify right side
   56,658.78x = 2,563,224,174.77
5. Step 5: Solve for x
   x = 2,563,224,174.77/56,658.78
6. Step 6: Final answer
   x = 45,239.66