Finding the Fourth Proportional to 31,004.76, 42,769.98 and 21,556.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,004.76 : 42,769.98 = 21,556.92 : x
2. Step 2: Convert to fraction form
   31,004.76/42,769.98 = 21,556.92/x
3. Step 3: Cross multiply
   31,004.76x = 42,769.98 × 21,556.92
4. Step 4: Simplify right side
   31,004.76x = 921,989,037.26
5. Step 5: Solve for x
   x = 921,989,037.26/31,004.76
6. Step 6: Final answer
   x = 29,737.02