Finding the Fourth Proportional to 61,767, 85,242.72 and 37,577.40

Step by Step Solution

1. Step 1: Write the proportion equation
   61,767 : 85,242.72 = 37,577.40 : x
2. Step 2: Convert to fraction form
   61,767/85,242.72 = 37,577.40/x
3. Step 3: Cross multiply
   61,767x = 85,242.72 × 37,577.40
4. Step 4: Simplify right side
   61,767x = 3,203,199,786.53
5. Step 5: Solve for x
   x = 3,203,199,786.53/61,767
6. Step 6: Final answer
   x = 51,859.40