Finding the Fourth Proportional to 55,288.80, 76,315.32 and 52,467.84

Step by Step Solution

1. Step 1: Write the proportion equation
   55,288.80 : 76,315.32 = 52,467.84 : x
2. Step 2: Convert to fraction form
   55,288.80/76,315.32 = 52,467.84/x
3. Step 3: Cross multiply
   55,288.80x = 76,315.32 × 52,467.84
4. Step 4: Simplify right side
   55,288.80x = 4,004,099,999.31
5. Step 5: Solve for x
   x = 4,004,099,999.31/55,288.80
6. Step 6: Final answer
   x = 72,421.54