Finding the Fourth Proportional to 86,123.94, 118,860.88 and 47,887.30

Step by Step Solution

1. Step 1: Write the proportion equation
   86,123.94 : 118,860.88 = 47,887.30 : x
2. Step 2: Convert to fraction form
   86,123.94/118,860.88 = 47,887.30/x
3. Step 3: Cross multiply
   86,123.94x = 118,860.88 × 47,887.30
4. Step 4: Simplify right side
   86,123.94x = 5,691,926,618.82
5. Step 5: Solve for x
   x = 5,691,926,618.82/86,123.94
6. Step 6: Final answer
   x = 66,089.95