Finding the Fourth Proportional to 13,070.72, 19,606.15 and 3,210.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,070.72 : 19,606.15 = 3,210.01 : x
2. Step 2: Convert to fraction form
   13,070.72/19,606.15 = 3,210.01/x
3. Step 3: Cross multiply
   13,070.72x = 19,606.15 × 3,210.01
4. Step 4: Simplify right side
   13,070.72x = 62,935,843.54
5. Step 5: Solve for x
   x = 62,935,843.54/13,070.72
6. Step 6: Final answer
   x = 4,815.02