Finding the Fourth Proportional to 101,280,077.53, 139,766,653.24 and 54,870,330.08

Step by Step Solution

1. Step 1: Write the proportion equation
   101,280,077.53 : 139,766,653.24 = 54,870,330.08 : x
2. Step 2: Convert to fraction form
   101,280,077.53/139,766,653.24 = 54,870,330.08/x
3. Step 3: Cross multiply
   101,280,077.53x = 139,766,653.24 × 54,870,330.08
4. Step 4: Simplify right side
   101,280,077.53x = 7,669,042,397,667,943
5. Step 5: Solve for x
   x = 7,669,042,397,667,943/101,280,077.53
6. Step 6: Final answer
   x = 75,721,134.75