Finding the Fourth Proportional to 58,216.33, 80,291.54 and 39,090.34

Step by Step Solution

1. Step 1: Write the proportion equation
   58,216.33 : 80,291.54 = 39,090.34 : x
2. Step 2: Convert to fraction form
   58,216.33/80,291.54 = 39,090.34/x
3. Step 3: Cross multiply
   58,216.33x = 80,291.54 × 39,090.34
4. Step 4: Simplify right side
   58,216.33x = 3,138,623,494.72
5. Step 5: Solve for x
   x = 3,138,623,494.72/58,216.33
6. Step 6: Final answer
   x = 53,913.11