Finding the Fourth Proportional to 42,230.56, 58,230.48 and 31,586.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,230.56 : 58,230.48 = 31,586.08 : x
2. Step 2: Convert to fraction form
   42,230.56/58,230.48 = 31,586.08/x
3. Step 3: Cross multiply
   42,230.56x = 58,230.48 × 31,586.08
4. Step 4: Simplify right side
   42,230.56x = 1,839,272,599.72
5. Step 5: Solve for x
   x = 1,839,272,599.72/42,230.56
6. Step 6: Final answer
   x = 43,553.12