Finding the Fourth Proportional to 402,422,111.08, 603,632,413.50 and 126,094,479.72

Step by Step Solution

1. Step 1: Write the proportion equation
   402,422,111.08 : 603,632,413.50 = 126,094,479.72 : x
2. Step 2: Convert to fraction form
   402,422,111.08/603,632,413.50 = 126,094,479.72/x
3. Step 3: Cross multiply
   402,422,111.08x = 603,632,413.50 × 126,094,479.72
4. Step 4: Simplify right side
   402,422,111.08x = 76,114,715,122,410,400
5. Step 5: Solve for x
   x = 76,114,715,122,410,400/402,422,111.08
6. Step 6: Final answer
   x = 189,141,483.60