Finding the Fourth Proportional to 269,566,266.76, 404,350,584.72 and 85,334,647.96

Step by Step Solution

1. Step 1: Write the proportion equation
   269,566,266.76 : 404,350,584.72 = 85,334,647.96 : x
2. Step 2: Convert to fraction form
   269,566,266.76/404,350,584.72 = 85,334,647.96/x
3. Step 3: Cross multiply
   269,566,266.76x = 404,350,584.72 × 85,334,647.96
4. Step 4: Simplify right side
   269,566,266.76x = 34,505,114,799,501,356
5. Step 5: Solve for x
   x = 34,505,114,799,501,356/269,566,266.76
6. Step 6: Final answer
   x = 128,002,346.93