Finding the Fourth Proportional to 388,610,823.89, 583,077,354.56 and 170,148,406.61

Step by Step Solution

1. Step 1: Write the proportion equation
   388,610,823.89 : 583,077,354.56 = 170,148,406.61 : x
2. Step 2: Convert to fraction form
   388,610,823.89/583,077,354.56 = 170,148,406.61/x
3. Step 3: Cross multiply
   388,610,823.89x = 583,077,354.56 × 170,148,406.61
4. Step 4: Simplify right side
   388,610,823.89x = 99,209,682,810,003,040
5. Step 5: Solve for x
   x = 99,209,682,810,003,040/388,610,823.89
6. Step 6: Final answer
   x = 255,293,153.74