Finding the Fourth Proportional to 54,333.89, 74,980.72 and 30,460.57

Step by Step Solution

1. Step 1: Write the proportion equation
   54,333.89 : 74,980.72 = 30,460.57 : x
2. Step 2: Convert to fraction form
   54,333.89/74,980.72 = 30,460.57/x
3. Step 3: Cross multiply
   54,333.89x = 74,980.72 × 30,460.57
4. Step 4: Simplify right side
   54,333.89x = 2,283,955,602.01
5. Step 5: Solve for x
   x = 2,283,955,602.01/54,333.89
6. Step 6: Final answer
   x = 42,035.56