Finding the Fourth Proportional to 56,383.91, 77,632.72 and 47,868.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,383.91 : 77,632.72 = 47,868.31 : x
2. Step 2: Convert to fraction form
   56,383.91/77,632.72 = 47,868.31/x
3. Step 3: Cross multiply
   56,383.91x = 77,632.72 × 47,868.31
4. Step 4: Simplify right side
   56,383.91x = 3,716,146,793.35
5. Step 5: Solve for x
   x = 3,716,146,793.35/56,383.91
6. Step 6: Final answer
   x = 65,907.94