Finding the Fourth Proportional to 233,111,393.68, 349,494,708.42 and 140,974,648.18

Step by Step Solution

1. Step 1: Write the proportion equation
   233,111,393.68 : 349,494,708.42 = 140,974,648.18 : x
2. Step 2: Convert to fraction form
   233,111,393.68/349,494,708.42 = 140,974,648.18/x
3. Step 3: Cross multiply
   233,111,393.68x = 349,494,708.42 × 140,974,648.18
4. Step 4: Simplify right side
   233,111,393.68x = 49,269,893,558,005,056
5. Step 5: Solve for x
   x = 49,269,893,558,005,056/233,111,393.68
6. Step 6: Final answer
   x = 211,357,723.79