Finding the Fourth Proportional to 25,317.74, 34,938.72 and 13,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,317.74 : 34,938.72 = 13,987.50 : x
2. Step 2: Convert to fraction form
   25,317.74/34,938.72 = 13,987.50/x
3. Step 3: Cross multiply
   25,317.74x = 34,938.72 × 13,987.50
4. Step 4: Simplify right side
   25,317.74x = 488,705,346
5. Step 5: Solve for x
   x = 488,705,346/25,317.74
6. Step 6: Final answer
   x = 19,302.89