Finding the Fourth Proportional to 77,796.86, 107,361.79 and 47,581.63

Step by Step Solution

1. Step 1: Write the proportion equation
   77,796.86 : 107,361.79 = 47,581.63 : x
2. Step 2: Convert to fraction form
   77,796.86/107,361.79 = 47,581.63/x
3. Step 3: Cross multiply
   77,796.86x = 107,361.79 × 47,581.63
4. Step 4: Simplify right side
   77,796.86x = 5,108,448,580.56
5. Step 5: Solve for x
   x = 5,108,448,580.56/77,796.86
6. Step 6: Final answer
   x = 65,663.95