Finding the Fourth Proportional to 56,271.15, 77,653.55 and 30,778.24

Step by Step Solution

1. Step 1: Write the proportion equation
   56,271.15 : 77,653.55 = 30,778.24 : x
2. Step 2: Convert to fraction form
   56,271.15/77,653.55 = 30,778.24/x
3. Step 3: Cross multiply
   56,271.15x = 77,653.55 × 30,778.24
4. Step 4: Simplify right side
   56,271.15x = 2,390,039,444.86
5. Step 5: Solve for x
   x = 2,390,039,444.86/56,271.15
6. Step 6: Final answer
   x = 42,473.62