Finding the Fourth Proportional to 5,123,738.55, 7,685,485.31 and 1,665,473.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123,738.55 : 7,685,485.31 = 1,665,473.90 : x
2. Step 2: Convert to fraction form
   5,123,738.55/7,685,485.31 = 1,665,473.90/x
3. Step 3: Cross multiply
   5,123,738.55x = 7,685,485.31 × 1,665,473.90
4. Step 4: Simplify right side
   5,123,738.55x = 12,799,975,145,883.61
5. Step 5: Solve for x
   x = 12,799,975,145,883.61/5,123,738.55
6. Step 6: Final answer
   x = 2,498,171.02