Finding the Fourth Proportional to 89,354.88, 123,319.58 and 51,117.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,354.88 : 123,319.58 = 51,117.98 : x
2. Step 2: Convert to fraction form
   89,354.88/123,319.58 = 51,117.98/x
3. Step 3: Cross multiply
   89,354.88x = 123,319.58 × 51,117.98
4. Step 4: Simplify right side
   89,354.88x = 6,303,846,951.86
5. Step 5: Solve for x
   x = 6,303,846,951.86/89,354.88
6. Step 6: Final answer
   x = 70,548.44