Finding the Fourth Proportional to 6,430.83, 8,876.28 and 3,780.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,430.83 : 8,876.28 = 3,780.00 : x
2. Step 2: Convert to fraction form
   6,430.83/8,876.28 = 3,780.00/x
3. Step 3: Cross multiply
   6,430.83x = 8,876.28 × 3,780.00
4. Step 4: Simplify right side
   6,430.83x = 33,552,275.12
5. Step 5: Solve for x
   x = 33,552,275.12/6,430.83
6. Step 6: Final answer
   x = 5,217.41