Finding the Fourth Proportional to 76,102.72, 114,141.12 and 20,698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,102.72 : 114,141.12 = 20,698.72 : x
2. Step 2: Convert to fraction form
   76,102.72/114,141.12 = 20,698.72/x
3. Step 3: Cross multiply
   76,102.72x = 114,141.12 × 20,698.72
4. Step 4: Simplify right side
   76,102.72x = 2,362,575,083.37
5. Step 5: Solve for x
   x = 2,362,575,083.37/76,102.72
6. Step 6: Final answer
   x = 31,044.56