Finding the Fourth Proportional to 63,468.81, 87,477.30 and 55,351.89

Step by Step Solution

1. Step 1: Write the proportion equation
   63,468.81 : 87,477.30 = 55,351.89 : x
2. Step 2: Convert to fraction form
   63,468.81/87,477.30 = 55,351.89/x
3. Step 3: Cross multiply
   63,468.81x = 87,477.30 × 55,351.89
4. Step 4: Simplify right side
   63,468.81x = 4,842,033,887.10
5. Step 5: Solve for x
   x = 4,842,033,887.10/63,468.81
6. Step 6: Final answer
   x = 76,289.97