Finding the Fourth Proportional to 121,244,456.93, 167,317,417.69 and 65,489,877.05

Step by Step Solution

1. Step 1: Write the proportion equation
   121,244,456.93 : 167,317,417.69 = 65,489,877.05 : x
2. Step 2: Convert to fraction form
   121,244,456.93/167,317,417.69 = 65,489,877.05/x
3. Step 3: Cross multiply
   121,244,456.93x = 167,317,417.69 × 65,489,877.05
4. Step 4: Simplify right side
   121,244,456.93x = 10,957,597,113,096,164
5. Step 5: Solve for x
   x = 10,957,597,113,096,164/121,244,456.93
6. Step 6: Final answer
   x = 90,376,066.59