Finding the Fourth Proportional to 89,779.88, 123,896.52 and 49,492.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,779.88 : 123,896.52 = 49,492.76 : x
2. Step 2: Convert to fraction form
   89,779.88/123,896.52 = 49,492.76/x
3. Step 3: Cross multiply
   89,779.88x = 123,896.52 × 49,492.76
4. Step 4: Simplify right side
   89,779.88x = 6,131,980,729.20
5. Step 5: Solve for x
   x = 6,131,980,729.20/89,779.88
6. Step 6: Final answer
   x = 68,300.17