Finding the Fourth Proportional to 56,074.55, 77,381.73 and 30,924.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,074.55 : 77,381.73 = 30,924.05 : x
2. Step 2: Convert to fraction form
   56,074.55/77,381.73 = 30,924.05/x
3. Step 3: Cross multiply
   56,074.55x = 77,381.73 × 30,924.05
4. Step 4: Simplify right side
   56,074.55x = 2,392,956,100.70
5. Step 5: Solve for x
   x = 2,392,956,100.70/56,074.55
6. Step 6: Final answer
   x = 42,674.55