Finding the Fourth Proportional to 233,113,263.42, 321,687,870.06 and 128,689,092.52

Step by Step Solution

1. Step 1: Write the proportion equation
   233,113,263.42 : 321,687,870.06 = 128,689,092.52 : x
2. Step 2: Convert to fraction form
   233,113,263.42/321,687,870.06 = 128,689,092.52/x
3. Step 3: Cross multiply
   233,113,263.42x = 321,687,870.06 × 128,689,092.52
4. Step 4: Simplify right side
   233,113,263.42x = 41,397,720,072,713,080
5. Step 5: Solve for x
   x = 41,397,720,072,713,080/233,113,263.42
6. Step 6: Final answer
   x = 177,586,292.03