Finding the Fourth Proportional to 55,970.91, 77,243.37 and 30,820.41

Step by Step Solution

1. Step 1: Write the proportion equation
   55,970.91 : 77,243.37 = 30,820.41 : x
2. Step 2: Convert to fraction form
   55,970.91/77,243.37 = 30,820.41/x
3. Step 3: Cross multiply
   55,970.91x = 77,243.37 × 30,820.41
4. Step 4: Simplify right side
   55,970.91x = 2,380,672,333.18
5. Step 5: Solve for x
   x = 2,380,672,333.18/55,970.91
6. Step 6: Final answer
   x = 42,534.10