Finding the Fourth Proportional to 56,441.55, 77,889.56 and 30,948.32

Step by Step Solution

1. Step 1: Write the proportion equation
   56,441.55 : 77,889.56 = 30,948.32 : x
2. Step 2: Convert to fraction form
   56,441.55/77,889.56 = 30,948.32/x
3. Step 3: Cross multiply
   56,441.55x = 77,889.56 × 30,948.32
4. Step 4: Simplify right side
   56,441.55x = 2,410,550,483.35
5. Step 5: Solve for x
   x = 2,410,550,483.35/56,441.55
6. Step 6: Final answer
   x = 42,708.79