Finding the Fourth Proportional to 31,054.07, 42,854.71 and 16,907.01

Step by Step Solution

1. Step 1: Write the proportion equation
   31,054.07 : 42,854.71 = 16,907.01 : x
2. Step 2: Convert to fraction form
   31,054.07/42,854.71 = 16,907.01/x
3. Step 3: Cross multiply
   31,054.07x = 42,854.71 × 16,907.01
4. Step 4: Simplify right side
   31,054.07x = 724,545,010.52
5. Step 5: Solve for x
   x = 724,545,010.52/31,054.07
6. Step 6: Final answer
   x = 23,331.72