Finding the Fourth Proportional to 53,978.96, 74,466.88 and 31,304.81

Step by Step Solution

1. Step 1: Write the proportion equation
   53,978.96 : 74,466.88 = 31,304.81 : x
2. Step 2: Convert to fraction form
   53,978.96/74,466.88 = 31,304.81/x
3. Step 3: Cross multiply
   53,978.96x = 74,466.88 × 31,304.81
4. Step 4: Simplify right side
   53,978.96x = 2,331,171,637.60
5. Step 5: Solve for x
   x = 2,331,171,637.60/53,978.96
6. Step 6: Final answer
   x = 43,186.67