Finding the Fourth Proportional to 77,610.15, 107,128.22 and 50,423.43

Step by Step Solution

1. Step 1: Write the proportion equation
   77,610.15 : 107,128.22 = 50,423.43 : x
2. Step 2: Convert to fraction form
   77,610.15/107,128.22 = 50,423.43/x
3. Step 3: Cross multiply
   77,610.15x = 107,128.22 × 50,423.43
4. Step 4: Simplify right side
   77,610.15x = 5,401,771,892.61
5. Step 5: Solve for x
   x = 5,401,771,892.61/77,610.15
6. Step 6: Final answer
   x = 69,601.36