Finding the Fourth Proportional to 38,735.52, 58,090.56 and 12,434.04

Step by Step Solution

1. Step 1: Write the proportion equation
   38,735.52 : 58,090.56 = 12,434.04 : x
2. Step 2: Convert to fraction form
   38,735.52/58,090.56 = 12,434.04/x
3. Step 3: Cross multiply
   38,735.52x = 58,090.56 × 12,434.04
4. Step 4: Simplify right side
   38,735.52x = 722,300,346.66
5. Step 5: Solve for x
   x = 722,300,346.66/38,735.52
6. Step 6: Final answer
   x = 18,646.98