Finding the Fourth Proportional to 55,479.32, 76,561.50 and 30,328.84

Step by Step Solution

1. Step 1: Write the proportion equation
   55,479.32 : 76,561.50 = 30,328.84 : x
2. Step 2: Convert to fraction form
   55,479.32/76,561.50 = 30,328.84/x
3. Step 3: Cross multiply
   55,479.32x = 76,561.50 × 30,328.84
4. Step 4: Simplify right side
   55,479.32x = 2,322,021,483.66
5. Step 5: Solve for x
   x = 2,322,021,483.66/55,479.32
6. Step 6: Final answer
   x = 41,853.82