Finding the Fourth Proportional to 89,686,728.99, 123,767,684.78 and 48,433,620.15

Step by Step Solution

1. Step 1: Write the proportion equation
   89,686,728.99 : 123,767,684.78 = 48,433,620.15 : x
2. Step 2: Convert to fraction form
   89,686,728.99/123,767,684.78 = 48,433,620.15/x
3. Step 3: Cross multiply
   89,686,728.99x = 123,767,684.78 × 48,433,620.15
4. Step 4: Simplify right side
   89,686,728.99x = 5,994,517,031,237,288
5. Step 5: Solve for x
   x = 5,994,517,031,237,288/89,686,728.99
6. Step 6: Final answer
   x = 66,838,395.14