Finding the Fourth Proportional to 89,492.15, 123,499.63 and 49,208.51

Step by Step Solution

1. Step 1: Write the proportion equation
   89,492.15 : 123,499.63 = 49,208.51 : x
2. Step 2: Convert to fraction form
   89,492.15/123,499.63 = 49,208.51/x
3. Step 3: Cross multiply
   89,492.15x = 123,499.63 × 49,208.51
4. Step 4: Simplify right side
   89,492.15x = 6,077,232,160.35
5. Step 5: Solve for x
   x = 6,077,232,160.35/89,492.15
6. Step 6: Final answer
   x = 67,907.99