Finding the Fourth Proportional to 53,710.30, 74,111.98 and 31,044.90

Step by Step Solution

1. Step 1: Write the proportion equation
   53,710.30 : 74,111.98 = 31,044.90 : x
2. Step 2: Convert to fraction form
   53,710.30/74,111.98 = 31,044.90/x
3. Step 3: Cross multiply
   53,710.30x = 74,111.98 × 31,044.90
4. Step 4: Simplify right side
   53,710.30x = 2,300,799,007.90
5. Step 5: Solve for x
   x = 2,300,799,007.90/53,710.30
6. Step 6: Final answer
   x = 42,837.20