Finding the Fourth Proportional to 31,047, 42,844.86 and 16,899.95

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047 : 42,844.86 = 16,899.95 : x
2. Step 2: Convert to fraction form
   31,047/42,844.86 = 16,899.95/x
3. Step 3: Cross multiply
   31,047x = 42,844.86 × 16,899.95
4. Step 4: Simplify right side
   31,047x = 724,075,777.53
5. Step 5: Solve for x
   x = 724,075,777.53/31,047
6. Step 6: Final answer
   x = 23,321.92