Finding the Fourth Proportional to 128,759,131.80, 193,172,912.10 and 55,944,667.80

Step by Step Solution

1. Step 1: Write the proportion equation
   128,759,131.80 : 193,172,912.10 = 55,944,667.80 : x
2. Step 2: Convert to fraction form
   128,759,131.80/193,172,912.10 = 55,944,667.80/x
3. Step 3: Cross multiply
   128,759,131.80x = 193,172,912.10 × 55,944,667.80
4. Step 4: Simplify right side
   128,759,131.80x = 10,806,994,395,393,100
5. Step 5: Solve for x
   x = 10,806,994,395,393,100/128,759,131.80
6. Step 6: Final answer
   x = 83,931,867.54