Finding the Fourth Proportional to 20,742.17, 31,115.89 and 7,592.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,742.17 : 31,115.89 = 7,592.63 : x
2. Step 2: Convert to fraction form
   20,742.17/31,115.89 = 7,592.63/x
3. Step 3: Cross multiply
   20,742.17x = 31,115.89 × 7,592.63
4. Step 4: Simplify right side
   20,742.17x = 236,251,439.89
5. Step 5: Solve for x
   x = 236,251,439.89/20,742.17
6. Step 6: Final answer
   x = 11,389.91