Finding the Fourth Proportional to 77,047,831.22, 106,325,981.42 and 42,239,774.31

Step by Step Solution

1. Step 1: Write the proportion equation
   77,047,831.22 : 106,325,981.42 = 42,239,774.31 : x
2. Step 2: Convert to fraction form
   77,047,831.22/106,325,981.42 = 42,239,774.31/x
3. Step 3: Cross multiply
   77,047,831.22x = 106,325,981.42 × 42,239,774.31
4. Step 4: Simplify right side
   77,047,831.22x = 4,491,185,458,258,855
5. Step 5: Solve for x
   x = 4,491,185,458,258,855/77,047,831.22
6. Step 6: Final answer
   x = 58,290,874.48