Finding the Fourth Proportional to 10,620.95, 15,929.30 and 10,094.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.95 : 15,929.30 = 10,094.05 : x
2. Step 2: Convert to fraction form
   10,620.95/15,929.30 = 10,094.05/x
3. Step 3: Cross multiply
   10,620.95x = 15,929.30 × 10,094.05
4. Step 4: Simplify right side
   10,620.95x = 160,791,020.55
5. Step 5: Solve for x
   x = 160,791,020.55/10,620.95
6. Step 6: Final answer
   x = 15,139.04