Finding the Fourth Proportional to 149,783,945.60, 210,302,185.60 and 149,783,945.60

Step by Step Solution

1. Step 1: Write the proportion equation
   149,783,945.60 : 210,302,185.60 = 149,783,945.60 : x
2. Step 2: Convert to fraction form
   149,783,945.60/210,302,185.60 = 149,783,945.60/x
3. Step 3: Cross multiply
   149,783,945.60x = 210,302,185.60 × 149,783,945.60
4. Step 4: Simplify right side
   149,783,945.60x = 31,499,891,127,471,500
5. Step 5: Solve for x
   x = 31,499,891,127,471,500/149,783,945.60
6. Step 6: Final answer
   x = 210,302,185.60