Finding the Fourth Proportional to 54,443.34, 75,131.55 and 30,572.10

Step by Step Solution

1. Step 1: Write the proportion equation
   54,443.34 : 75,131.55 = 30,572.10 : x
2. Step 2: Convert to fraction form
   54,443.34/75,131.55 = 30,572.10/x
3. Step 3: Cross multiply
   54,443.34x = 75,131.55 × 30,572.10
4. Step 4: Simplify right side
   54,443.34x = 2,296,929,259.76
5. Step 5: Solve for x
   x = 2,296,929,259.76/54,443.34
6. Step 6: Final answer
   x = 42,189.35