Finding the Fourth Proportional to 62,100.78, 85,756.01 and 39,447.07

Step by Step Solution

1. Step 1: Write the proportion equation
   62,100.78 : 85,756.01 = 39,447.07 : x
2. Step 2: Convert to fraction form
   62,100.78/85,756.01 = 39,447.07/x
3. Step 3: Cross multiply
   62,100.78x = 85,756.01 × 39,447.07
4. Step 4: Simplify right side
   62,100.78x = 3,382,823,329.39
5. Step 5: Solve for x
   x = 3,382,823,329.39/62,100.78
6. Step 6: Final answer
   x = 54,473.12