Finding the Fourth Proportional to 10,059.10, 14,111.90 and 10,059.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,059.10 : 14,111.90 = 10,059.10 : x
2. Step 2: Convert to fraction form
   10,059.10/14,111.90 = 10,059.10/x
3. Step 3: Cross multiply
   10,059.10x = 14,111.90 × 10,059.10
4. Step 4: Simplify right side
   10,059.10x = 141,953,013.29
5. Step 5: Solve for x
   x = 141,953,013.29/10,059.10
6. Step 6: Final answer
   x = 14,111.90