Finding the Fourth Proportional to 77,404.43, 115,994.59 and 53,364.06

Step by Step Solution

1. Step 1: Write the proportion equation
   77,404.43 : 115,994.59 = 53,364.06 : x
2. Step 2: Convert to fraction form
   77,404.43/115,994.59 = 53,364.06/x
3. Step 3: Cross multiply
   77,404.43x = 115,994.59 × 53,364.06
4. Step 4: Simplify right side
   77,404.43x = 6,189,942,127.03
5. Step 5: Solve for x
   x = 6,189,942,127.03/77,404.43
6. Step 6: Final answer
   x = 79,968.83