Finding the Fourth Proportional to 42,250.25, 58,305.12 and 23,131.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,250.25 : 58,305.12 = 23,131.76 : x
2. Step 2: Convert to fraction form
   42,250.25/58,305.12 = 23,131.76/x
3. Step 3: Cross multiply
   42,250.25x = 58,305.12 × 23,131.76
4. Step 4: Simplify right side
   42,250.25x = 1,348,699,751.09
5. Step 5: Solve for x
   x = 1,348,699,751.09/42,250.25
6. Step 6: Final answer
   x = 31,921.70