Finding the Fourth Proportional to 56,269.03, 77,648.12 and 30,770.32

Step by Step Solution

1. Step 1: Write the proportion equation
   56,269.03 : 77,648.12 = 30,770.32 : x
2. Step 2: Convert to fraction form
   56,269.03/77,648.12 = 30,770.32/x
3. Step 3: Cross multiply
   56,269.03x = 77,648.12 × 30,770.32
4. Step 4: Simplify right side
   56,269.03x = 2,389,257,111.56
5. Step 5: Solve for x
   x = 2,389,257,111.56/56,269.03
6. Step 6: Final answer
   x = 42,461.32