Finding the Fourth Proportional to 147,622,676.10, 221,434,014.15 and 139,119,620.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,622,676.10 : 221,434,014.15 = 139,119,620.10 : x
2. Step 2: Convert to fraction form
   147,622,676.10/221,434,014.15 = 139,119,620.10/x
3. Step 3: Cross multiply
   147,622,676.10x = 221,434,014.15 × 139,119,620.10
4. Step 4: Simplify right side
   147,622,676.10x = 30,805,815,925,766,024
5. Step 5: Solve for x
   x = 30,805,815,925,766,024/147,622,676.10
6. Step 6: Final answer
   x = 208,679,430.15