Finding the Fourth Proportional to 77,669, 107,178.82 and 45,830.60

Step by Step Solution

1. Step 1: Write the proportion equation
   77,669 : 107,178.82 = 45,830.60 : x
2. Step 2: Convert to fraction form
   77,669/107,178.82 = 45,830.60/x
3. Step 3: Cross multiply
   77,669x = 107,178.82 × 45,830.60
4. Step 4: Simplify right side
   77,669x = 4,912,069,627.89
5. Step 5: Solve for x
   x = 4,912,069,627.89/77,669
6. Step 6: Final answer
   x = 63,243.63