Finding the Fourth Proportional to 147,513,139.10, 206,115,286.90 and 147,513,139.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,513,139.10 : 206,115,286.90 = 147,513,139.10 : x
2. Step 2: Convert to fraction form
   147,513,139.10/206,115,286.90 = 147,513,139.10/x
3. Step 3: Cross multiply
   147,513,139.10x = 206,115,286.90 × 147,513,139.10
4. Step 4: Simplify right side
   147,513,139.10x = 30,404,712,987,116,108
5. Step 5: Solve for x
   x = 30,404,712,987,116,108/147,513,139.10
6. Step 6: Final answer
   x = 206,115,286.90