Finding the Fourth Proportional to 85,662.69, 118,210.80 and 47,419.98

Step by Step Solution

1. Step 1: Write the proportion equation
   85,662.69 : 118,210.80 = 47,419.98 : x
2. Step 2: Convert to fraction form
   85,662.69/118,210.80 = 47,419.98/x
3. Step 3: Cross multiply
   85,662.69x = 118,210.80 × 47,419.98
4. Step 4: Simplify right side
   85,662.69x = 5,605,553,771.78
5. Step 5: Solve for x
   x = 5,605,553,771.78/85,662.69
6. Step 6: Final answer
   x = 65,437.52