Finding the Fourth Proportional to 56,353.05, 77,768.15 and 30,859.02

Step by Step Solution

1. Step 1: Write the proportion equation
   56,353.05 : 77,768.15 = 30,859.02 : x
2. Step 2: Convert to fraction form
   56,353.05/77,768.15 = 30,859.02/x
3. Step 3: Cross multiply
   56,353.05x = 77,768.15 × 30,859.02
4. Step 4: Simplify right side
   56,353.05x = 2,399,848,741.92
5. Step 5: Solve for x
   x = 2,399,848,741.92/56,353.05
6. Step 6: Final answer
   x = 42,585.96