Finding the Fourth Proportional to 54,333.66, 74,980.71 and 30,461.34

Step by Step Solution

1. Step 1: Write the proportion equation
   54,333.66 : 74,980.71 = 30,461.34 : x
2. Step 2: Convert to fraction form
   54,333.66/74,980.71 = 30,461.34/x
3. Step 3: Cross multiply
   54,333.66x = 74,980.71 × 30,461.34
4. Step 4: Simplify right side
   54,333.66x = 2,284,012,900.75
5. Step 5: Solve for x
   x = 2,284,012,900.75/54,333.66
6. Step 6: Final answer
   x = 42,036.79