Finding the Fourth Proportional to 31,200.90, 43,057.35 and 17,053.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,200.90 : 43,057.35 = 17,053.98 : x
2. Step 2: Convert to fraction form
   31,200.90/43,057.35 = 17,053.98/x
3. Step 3: Cross multiply
   31,200.90x = 43,057.35 × 17,053.98
4. Step 4: Simplify right side
   31,200.90x = 734,299,185.75
5. Step 5: Solve for x
   x = 734,299,185.75/31,200.90
6. Step 6: Final answer
   x = 23,534.55