Finding the Fourth Proportional to 89,434.86, 123,420.69 and 49,151.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89,434.86 : 123,420.69 = 49,151.94 : x
2. Step 2: Convert to fraction form
   89,434.86/123,420.69 = 49,151.94/x
3. Step 3: Cross multiply
   89,434.86x = 123,420.69 × 49,151.94
4. Step 4: Simplify right side
   89,434.86x = 6,066,366,349.64
5. Step 5: Solve for x
   x = 6,066,366,349.64/89,434.86
6. Step 6: Final answer
   x = 67,830.00