Finding the Fourth Proportional to 31,507.19, 43,480.73 and 17,360.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,507.19 : 43,480.73 = 17,360.05 : x
2. Step 2: Convert to fraction form
   31,507.19/43,480.73 = 17,360.05/x
3. Step 3: Cross multiply
   31,507.19x = 43,480.73 × 17,360.05
4. Step 4: Simplify right side
   31,507.19x = 754,827,581.53
5. Step 5: Solve for x
   x = 754,827,581.53/31,507.19
6. Step 6: Final answer
   x = 23,957.31