Finding the Fourth Proportional to 25,532.48, 38,321.91 and 13,061.12

Step by Step Solution

1. Step 1: Write the proportion equation
   25,532.48 : 38,321.91 = 13,061.12 : x
2. Step 2: Convert to fraction form
   25,532.48/38,321.91 = 13,061.12/x
3. Step 3: Cross multiply
   25,532.48x = 38,321.91 × 13,061.12
4. Step 4: Simplify right side
   25,532.48x = 500,526,873.53
5. Step 5: Solve for x
   x = 500,526,873.53/25,532.48
6. Step 6: Final answer
   x = 19,603.53