Finding the Fourth Proportional to 76,004.57, 113,945.34 and 31,664.63

Step by Step Solution

1. Step 1: Write the proportion equation
   76,004.57 : 113,945.34 = 31,664.63 : x
2. Step 2: Convert to fraction form
   76,004.57/113,945.34 = 31,664.63/x
3. Step 3: Cross multiply
   76,004.57x = 113,945.34 × 31,664.63
4. Step 4: Simplify right side
   76,004.57x = 3,608,037,031.32
5. Step 5: Solve for x
   x = 3,608,037,031.32/76,004.57
6. Step 6: Final answer
   x = 47,471.32