Finding the Fourth Proportional to 42,389.89, 58,502.72 and 27,090.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,389.89 : 58,502.72 = 27,090.54 : x
2. Step 2: Convert to fraction form
   42,389.89/58,502.72 = 27,090.54/x
3. Step 3: Cross multiply
   42,389.89x = 58,502.72 × 27,090.54
4. Step 4: Simplify right side
   42,389.89x = 1,584,870,344.00
5. Step 5: Solve for x
   x = 1,584,870,344.00/42,389.89
6. Step 6: Final answer
   x = 37,387.93