Finding the Fourth Proportional to 8,700.58, 13,051.79 and 3,770.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,700.58 : 13,051.79 = 3,770.72 : x
2. Step 2: Convert to fraction form
   8,700.58/13,051.79 = 3,770.72/x
3. Step 3: Cross multiply
   8,700.58x = 13,051.79 × 3,770.72
4. Step 4: Simplify right side
   8,700.58x = 49,214,645.59
5. Step 5: Solve for x
   x = 49,214,645.59/8,700.58
6. Step 6: Final answer
   x = 5,656.48