Finding the Fourth Proportional to 83,687.58, 115,492.50 and 47,888.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,687.58 : 115,492.50 = 47,888.82 : x
2. Step 2: Convert to fraction form
   83,687.58/115,492.50 = 47,888.82/x
3. Step 3: Cross multiply
   83,687.58x = 115,492.50 × 47,888.82
4. Step 4: Simplify right side
   83,687.58x = 5,530,799,543.85
5. Step 5: Solve for x
   x = 5,530,799,543.85/83,687.58
6. Step 6: Final answer
   x = 66,088.65