Finding the Fourth Proportional to 89,492.18, 123,499.51 and 49,208.47

Step by Step Solution

1. Step 1: Write the proportion equation
   89,492.18 : 123,499.51 = 49,208.47 : x
2. Step 2: Convert to fraction form
   89,492.18/123,499.51 = 49,208.47/x
3. Step 3: Cross multiply
   89,492.18x = 123,499.51 × 49,208.47
4. Step 4: Simplify right side
   89,492.18x = 6,077,221,501.08
5. Step 5: Solve for x
   x = 6,077,221,501.08/89,492.18
6. Step 6: Final answer
   x = 67,907.85