Finding the Fourth Proportional to 31,501.56, 47,219.94 and 21,608.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,501.56 : 47,219.94 = 21,608.76 : x
2. Step 2: Convert to fraction form
   31,501.56/47,219.94 = 21,608.76/x
3. Step 3: Cross multiply
   31,501.56x = 47,219.94 × 21,608.76
4. Step 4: Simplify right side
   31,501.56x = 1,020,364,350.67
5. Step 5: Solve for x
   x = 1,020,364,350.67/31,501.56
6. Step 6: Final answer
   x = 32,390.91