Finding the Fourth Proportional to 77,085.86, 106,396.25 and 50,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,085.86 : 106,396.25 = 50,181.50 : x
2. Step 2: Convert to fraction form
   77,085.86/106,396.25 = 50,181.50/x
3. Step 3: Cross multiply
   77,085.86x = 106,396.25 × 50,181.50
4. Step 4: Simplify right side
   77,085.86x = 5,339,122,636.49
5. Step 5: Solve for x
   x = 5,339,122,636.49/77,085.86
6. Step 6: Final answer
   x = 69,262.03