Finding the Fourth Proportional to 31,453.31, 43,405.57 and 17,307.07

Step by Step Solution

1. Step 1: Write the proportion equation
   31,453.31 : 43,405.57 = 17,307.07 : x
2. Step 2: Convert to fraction form
   31,453.31/43,405.57 = 17,307.07/x
3. Step 3: Cross multiply
   31,453.31x = 43,405.57 × 17,307.07
4. Step 4: Simplify right side
   31,453.31x = 751,223,151.50
5. Step 5: Solve for x
   x = 751,223,151.50/31,453.31
6. Step 6: Final answer
   x = 23,883.75