Finding the Fourth Proportional to 89,709,236.12, 123,798,793.29 and 48,456,128.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,709,236.12 : 123,798,793.29 = 48,456,128.42 : x
2. Step 2: Convert to fraction form
   89,709,236.12/123,798,793.29 = 48,456,128.42/x
3. Step 3: Cross multiply
   89,709,236.12x = 123,798,793.29 × 48,456,128.42
4. Step 4: Simplify right side
   89,709,236.12x = 5,998,810,225,901,275
5. Step 5: Solve for x
   x = 5,998,810,225,901,275/89,709,236.12
6. Step 6: Final answer
   x = 66,869,482.85