Finding the Fourth Proportional to 56,069.32, 77,376.24 and 30,919.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,069.32 : 77,376.24 = 30,919.72 : x
2. Step 2: Convert to fraction form
   56,069.32/77,376.24 = 30,919.72/x
3. Step 3: Cross multiply
   56,069.32x = 77,376.24 × 30,919.72
4. Step 4: Simplify right side
   56,069.32x = 2,392,451,675.45
5. Step 5: Solve for x
   x = 2,392,451,675.45/56,069.32
6. Step 6: Final answer
   x = 42,669.53