Finding the Fourth Proportional to 42,647.58, 58,821.93 and 31,313.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,647.58 : 58,821.93 = 31,313.52 : x
2. Step 2: Convert to fraction form
   42,647.58/58,821.93 = 31,313.52/x
3. Step 3: Cross multiply
   42,647.58x = 58,821.93 × 31,313.52
4. Step 4: Simplify right side
   42,647.58x = 1,841,921,681.49
5. Step 5: Solve for x
   x = 1,841,921,681.49/42,647.58
6. Step 6: Final answer
   x = 43,189.36