Finding the Fourth Proportional to 55,680.72, 76,796.92 and 47,932.60

Step by Step Solution

1. Step 1: Write the proportion equation
   55,680.72 : 76,796.92 = 47,932.60 : x
2. Step 2: Convert to fraction form
   55,680.72/76,796.92 = 47,932.60/x
3. Step 3: Cross multiply
   55,680.72x = 76,796.92 × 47,932.60
4. Step 4: Simplify right side
   55,680.72x = 3,681,076,047.59
5. Step 5: Solve for x
   x = 3,681,076,047.59/55,680.72
6. Step 6: Final answer
   x = 66,110.42