Finding the Fourth Proportional to 15,404.58, 21,248.72 and 9,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,404.58 : 21,248.72 = 9,112.50 : x
2. Step 2: Convert to fraction form
   15,404.58/21,248.72 = 9,112.50/x
3. Step 3: Cross multiply
   15,404.58x = 21,248.72 × 9,112.50
4. Step 4: Simplify right side
   15,404.58x = 193,628,961
5. Step 5: Solve for x
   x = 193,628,961/15,404.58
6. Step 6: Final answer
   x = 12,569.57