Finding the Fourth Proportional to 77,057.78, 115,588.83 and 37,646.42

Step by Step Solution

1. Step 1: Write the proportion equation
   77,057.78 : 115,588.83 = 37,646.42 : x
2. Step 2: Convert to fraction form
   77,057.78/115,588.83 = 37,646.42/x
3. Step 3: Cross multiply
   77,057.78x = 115,588.83 × 37,646.42
4. Step 4: Simplify right side
   77,057.78x = 4,351,505,641.49
5. Step 5: Solve for x
   x = 4,351,505,641.49/77,057.78
6. Step 6: Final answer
   x = 56,470.69