Finding the Fourth Proportional to 105,196,851.90, 145,171,852.20 and 58,787,105.67

Step by Step Solution

1. Step 1: Write the proportion equation
   105,196,851.90 : 145,171,852.20 = 58,787,105.67 : x
2. Step 2: Convert to fraction form
   105,196,851.90/145,171,852.20 = 58,787,105.67/x
3. Step 3: Cross multiply
   105,196,851.90x = 145,171,852.20 × 58,787,105.67
4. Step 4: Simplify right side
   105,196,851.90x = 8,534,233,015,591,022
5. Step 5: Solve for x
   x = 8,534,233,015,591,022/105,196,851.90
6. Step 6: Final answer
   x = 81,126,315.68