Finding the Fourth Proportional to 85,830.72, 118,443.11 and 47,591.84

Step by Step Solution

1. Step 1: Write the proportion equation
   85,830.72 : 118,443.11 = 47,591.84 : x
2. Step 2: Convert to fraction form
   85,830.72/118,443.11 = 47,591.84/x
3. Step 3: Cross multiply
   85,830.72x = 118,443.11 × 47,591.84
4. Step 4: Simplify right side
   85,830.72x = 5,636,924,710.05
5. Step 5: Solve for x
   x = 5,636,924,710.05/85,830.72
6. Step 6: Final answer
   x = 65,674.91