Finding the Fourth Proportional to 55,224,546.32, 76,212,468.78 and 30,778,435.28

Step by Step Solution

1. Step 1: Write the proportion equation
   55,224,546.32 : 76,212,468.78 = 30,778,435.28 : x
2. Step 2: Convert to fraction form
   55,224,546.32/76,212,468.78 = 30,778,435.28/x
3. Step 3: Cross multiply
   55,224,546.32x = 76,212,468.78 × 30,778,435.28
4. Step 4: Simplify right side
   55,224,546.32x = 2,345,700,537,949,362.50
5. Step 5: Solve for x
   x = 2,345,700,537,949,362.50/55,224,546.32
6. Step 6: Final answer
   x = 42,475,686.88