Finding the Fourth Proportional to 86,131.69, 118,871.59 and 47,895.05

Step by Step Solution

1. Step 1: Write the proportion equation
   86,131.69 : 118,871.59 = 47,895.05 : x
2. Step 2: Convert to fraction form
   86,131.69/118,871.59 = 47,895.05/x
3. Step 3: Cross multiply
   86,131.69x = 118,871.59 × 47,895.05
4. Step 4: Simplify right side
   86,131.69x = 5,693,360,746.63
5. Step 5: Solve for x
   x = 5,693,360,746.63/86,131.69
6. Step 6: Final answer
   x = 66,100.65