Finding the Fourth Proportional to 10,617, 15,813.36 and 10,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,617 : 15,813.36 = 10,061.88 : x
2. Step 2: Convert to fraction form
   10,617/15,813.36 = 10,061.88/x
3. Step 3: Cross multiply
   10,617x = 15,813.36 × 10,061.88
4. Step 4: Simplify right side
   10,617x = 159,112,130.72
5. Step 5: Solve for x
   x = 159,112,130.72/10,617
6. Step 6: Final answer
   x = 14,986.54