Finding the Fourth Proportional to 58,631.98, 87,947.16 and 14,258.59

Step by Step Solution

1. Step 1: Write the proportion equation
   58,631.98 : 87,947.16 = 14,258.59 : x
2. Step 2: Convert to fraction form
   58,631.98/87,947.16 = 14,258.59/x
3. Step 3: Cross multiply
   58,631.98x = 87,947.16 × 14,258.59
4. Step 4: Simplify right side
   58,631.98x = 1,254,002,496.10
5. Step 5: Solve for x
   x = 1,254,002,496.10/58,631.98
6. Step 6: Final answer
   x = 21,387.69