Finding the Fourth Proportional to 7,347.83, 10,139.72 and 4,203.95

Step by Step Solution

1. Step 1: Write the proportion equation
   7,347.83 : 10,139.72 = 4,203.95 : x
2. Step 2: Convert to fraction form
   7,347.83/10,139.72 = 4,203.95/x
3. Step 3: Cross multiply
   7,347.83x = 10,139.72 × 4,203.95
4. Step 4: Simplify right side
   7,347.83x = 42,626,804.18
5. Step 5: Solve for x
   x = 42,626,804.18/7,347.83
6. Step 6: Final answer
   x = 5,801.28