Finding the Fourth Proportional to 31,045.02, 42,840.63 and 16,897.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.02 : 42,840.63 = 16,897.02 : x
2. Step 2: Convert to fraction form
   31,045.02/42,840.63 = 16,897.02/x
3. Step 3: Cross multiply
   31,045.02x = 42,840.63 × 16,897.02
4. Step 4: Simplify right side
   31,045.02x = 723,878,981.92
5. Step 5: Solve for x
   x = 723,878,981.92/31,045.02
6. Step 6: Final answer
   x = 23,317.07