Finding the Fourth Proportional to 73,256.17, 109,889.72 and 31,131.52

Step by Step Solution

1. Step 1: Write the proportion equation
   73,256.17 : 109,889.72 = 31,131.52 : x
2. Step 2: Convert to fraction form
   73,256.17/109,889.72 = 31,131.52/x
3. Step 3: Cross multiply
   73,256.17x = 109,889.72 × 31,131.52
4. Step 4: Simplify right side
   73,256.17x = 3,421,034,015.97
5. Step 5: Solve for x
   x = 3,421,034,015.97/73,256.17
6. Step 6: Final answer
   x = 46,699.60