Finding the Fourth Proportional to 10,345.16, 15,513.19 and 2,947.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.16 : 15,513.19 = 2,947.94 : x
2. Step 2: Convert to fraction form
   10,345.16/15,513.19 = 2,947.94/x
3. Step 3: Cross multiply
   10,345.16x = 15,513.19 × 2,947.94
4. Step 4: Simplify right side
   10,345.16x = 45,731,938.59
5. Step 5: Solve for x
   x = 45,731,938.59/10,345.16
6. Step 6: Final answer
   x = 4,420.61