Finding the Fourth Proportional to 56,019.28, 77,305.61 and 30,525.83

Step by Step Solution

1. Step 1: Write the proportion equation
   56,019.28 : 77,305.61 = 30,525.83 : x
2. Step 2: Convert to fraction form
   56,019.28/77,305.61 = 30,525.83/x
3. Step 3: Cross multiply
   56,019.28x = 77,305.61 × 30,525.83
4. Step 4: Simplify right side
   56,019.28x = 2,359,817,369.75
5. Step 5: Solve for x
   x = 2,359,817,369.75/56,019.28
6. Step 6: Final answer
   x = 42,125.09