Finding the Fourth Proportional to 31,129.67, 42,958.75 and 17,700.93

Step by Step Solution

1. Step 1: Write the proportion equation
   31,129.67 : 42,958.75 = 17,700.93 : x
2. Step 2: Convert to fraction form
   31,129.67/42,958.75 = 17,700.93/x
3. Step 3: Cross multiply
   31,129.67x = 42,958.75 × 17,700.93
4. Step 4: Simplify right side
   31,129.67x = 760,409,782.39
5. Step 5: Solve for x
   x = 760,409,782.39/31,129.67
6. Step 6: Final answer
   x = 24,427.17