Finding the Fourth Proportional to 101,123,229.28, 139,550,054.16 and 54,713,483.20

Step by Step Solution

1. Step 1: Write the proportion equation
   101,123,229.28 : 139,550,054.16 = 54,713,483.20 : x
2. Step 2: Convert to fraction form
   101,123,229.28/139,550,054.16 = 54,713,483.20/x
3. Step 3: Cross multiply
   101,123,229.28x = 139,550,054.16 × 54,713,483.20
4. Step 4: Simplify right side
   101,123,229.28x = 7,635,269,543,842,250
5. Step 5: Solve for x
   x = 7,635,269,543,842,250/101,123,229.28
6. Step 6: Final answer
   x = 75,504,605.60