Finding the Fourth Proportional to 86,156.60, 118,878.53 and 50,339.69

Step by Step Solution

1. Step 1: Write the proportion equation
   86,156.60 : 118,878.53 = 50,339.69 : x
2. Step 2: Convert to fraction form
   86,156.60/118,878.53 = 50,339.69/x
3. Step 3: Cross multiply
   86,156.60x = 118,878.53 × 50,339.69
4. Step 4: Simplify right side
   86,156.60x = 5,984,307,501.76
5. Step 5: Solve for x
   x = 5,984,307,501.76/86,156.60
6. Step 6: Final answer
   x = 69,458.50