Finding the Fourth Proportional to 63,105.01, 86,907.72 and 61,727.20

Step by Step Solution

1. Step 1: Write the proportion equation
   63,105.01 : 86,907.72 = 61,727.20 : x
2. Step 2: Convert to fraction form
   63,105.01/86,907.72 = 61,727.20/x
3. Step 3: Cross multiply
   63,105.01x = 86,907.72 × 61,727.20
4. Step 4: Simplify right side
   63,105.01x = 5,364,570,213.98
5. Step 5: Solve for x
   x = 5,364,570,213.98/63,105.01
6. Step 6: Final answer
   x = 85,010.21