Finding the Fourth Proportional to 149,783,945.10, 210,302,184.90 and 149,783,945.10

Step by Step Solution

1. Step 1: Write the proportion equation
   149,783,945.10 : 210,302,184.90 = 149,783,945.10 : x
2. Step 2: Convert to fraction form
   149,783,945.10/210,302,184.90 = 149,783,945.10/x
3. Step 3: Cross multiply
   149,783,945.10x = 210,302,184.90 × 149,783,945.10
4. Step 4: Simplify right side
   149,783,945.10x = 31,499,890,917,471,648
5. Step 5: Solve for x
   x = 31,499,890,917,471,648/149,783,945.10
6. Step 6: Final answer
   x = 210,302,184.90