Finding the Fourth Proportional to 55,342.32, 76,388.76 and 38,580.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,342.32 : 76,388.76 = 38,580.72 : x
2. Step 2: Convert to fraction form
   55,342.32/76,388.76 = 38,580.72/x
3. Step 3: Cross multiply
   55,342.32x = 76,388.76 × 38,580.72
4. Step 4: Simplify right side
   55,342.32x = 2,947,133,360.71
5. Step 5: Solve for x
   x = 2,947,133,360.71/55,342.32
6. Step 6: Final answer
   x = 53,252.80