Finding the Fourth Proportional to 42,976.86, 64,427.85 and 34,642.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,976.86 : 64,427.85 = 34,642.14 : x
2. Step 2: Convert to fraction form
   42,976.86/64,427.85 = 34,642.14/x
3. Step 3: Cross multiply
   42,976.86x = 64,427.85 × 34,642.14
4. Step 4: Simplify right side
   42,976.86x = 2,231,918,599.60
5. Step 5: Solve for x
   x = 2,231,918,599.60/42,976.86
6. Step 6: Final answer
   x = 51,933.03