Finding the Fourth Proportional to 56,441.05, 77,888.87 and 30,947.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,441.05 : 77,888.87 = 30,947.82 : x
2. Step 2: Convert to fraction form
   56,441.05/77,888.87 = 30,947.82/x
3. Step 3: Cross multiply
   56,441.05x = 77,888.87 × 30,947.82
4. Step 4: Simplify right side
   56,441.05x = 2,410,490,728.76
5. Step 5: Solve for x
   x = 2,410,490,728.76/56,441.05
6. Step 6: Final answer
   x = 42,708.11