Finding the Fourth Proportional to 31,517.31, 47,276.00 and 18,210.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,517.31 : 47,276.00 = 18,210.56 : x
2. Step 2: Convert to fraction form
   31,517.31/47,276.00 = 18,210.56/x
3. Step 3: Cross multiply
   31,517.31x = 47,276.00 × 18,210.56
4. Step 4: Simplify right side
   31,517.31x = 860,922,343.51
5. Step 5: Solve for x
   x = 860,922,343.51/31,517.31
6. Step 6: Final answer
   x = 27,315.86