Finding the Fourth Proportional to 80,047.78, 120,092.41 and 42,577.01

Step by Step Solution

1. Step 1: Write the proportion equation
   80,047.78 : 120,092.41 = 42,577.01 : x
2. Step 2: Convert to fraction form
   80,047.78/120,092.41 = 42,577.01/x
3. Step 3: Cross multiply
   80,047.78x = 120,092.41 × 42,577.01
4. Step 4: Simplify right side
   80,047.78x = 5,113,175,741.49
5. Step 5: Solve for x
   x = 5,113,175,741.49/80,047.78
6. Step 6: Final answer
   x = 63,876.55