Finding the Fourth Proportional to 10,158.86, 15,213.70 and 7,030.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158.86 : 15,213.70 = 7,030.10 : x
2. Step 2: Convert to fraction form
   10,158.86/15,213.70 = 7,030.10/x
3. Step 3: Cross multiply
   10,158.86x = 15,213.70 × 7,030.10
4. Step 4: Simplify right side
   10,158.86x = 106,953,832.37
5. Step 5: Solve for x
   x = 106,953,832.37/10,158.86
6. Step 6: Final answer
   x = 10,528.13