Finding the Fourth Proportional to 55,909, 77,154.42 and 30,757.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,909 : 77,154.42 = 30,757.96 : x
2. Step 2: Convert to fraction form
   55,909/77,154.42 = 30,757.96/x
3. Step 3: Cross multiply
   55,909x = 77,154.42 × 30,757.96
4. Step 4: Simplify right side
   55,909x = 2,373,112,564.18
5. Step 5: Solve for x
   x = 2,373,112,564.18/55,909
6. Step 6: Final answer
   x = 42,445.98