Finding the Fourth Proportional to 113,188,413.81, 156,189,704.34 and 65,495,424.56

Step by Step Solution

1. Step 1: Write the proportion equation
   113,188,413.81 : 156,189,704.34 = 65,495,424.56 : x
2. Step 2: Convert to fraction form
   113,188,413.81/156,189,704.34 = 65,495,424.56/x
3. Step 3: Cross multiply
   113,188,413.81x = 156,189,704.34 × 65,495,424.56
4. Step 4: Simplify right side
   113,188,413.81x = 10,229,710,996,745,096
5. Step 5: Solve for x
   x = 10,229,710,996,745,096/113,188,413.81
6. Step 6: Final answer
   x = 90,377,722.00