Finding the Fourth Proportional to 57,390,978.48, 79,227,825.04 and 39,763,246.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,390,978.48 : 79,227,825.04 = 39,763,246.56 : x
2. Step 2: Convert to fraction form
   57,390,978.48/79,227,825.04 = 39,763,246.56/x
3. Step 3: Cross multiply
   57,390,978.48x = 79,227,825.04 × 39,763,246.56
4. Step 4: Simplify right side
   57,390,978.48x = 3,150,355,541,478,062.50
5. Step 5: Solve for x
   x = 3,150,355,541,478,062.50/57,390,978.48
6. Step 6: Final answer
   x = 54,892,870.36