Finding the Fourth Proportional to 492,072,978.80, 738,118,216.20 and 147,030,863.60

Step by Step Solution

1. Step 1: Write the proportion equation
   492,072,978.80 : 738,118,216.20 = 147,030,863.60 : x
2. Step 2: Convert to fraction form
   492,072,978.80/738,118,216.20 = 147,030,863.60/x
3. Step 3: Cross multiply
   492,072,978.80x = 738,118,216.20 × 147,030,863.60
4. Step 4: Simplify right side
   492,072,978.80x = 108,526,158,766,777,520
5. Step 5: Solve for x
   x = 108,526,158,766,777,520/492,072,978.80
6. Step 6: Final answer
   x = 220,548,909.29