Finding the Fourth Proportional to 85,511.25, 118,005.53 and 47,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,511.25 : 118,005.53 = 47,785.50 : x
2. Step 2: Convert to fraction form
   85,511.25/118,005.53 = 47,785.50/x
3. Step 3: Cross multiply
   85,511.25x = 118,005.53 × 47,785.50
4. Step 4: Simplify right side
   85,511.25x = 5,638,953,014.89
5. Step 5: Solve for x
   x = 5,638,953,014.89/85,511.25
6. Step 6: Final answer
   x = 65,943.99