Finding the Fourth Proportional to 19,957,688.72, 29,936,270.64 and 4,811,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,957,688.72 : 29,936,270.64 = 4,811,498.72 : x
2. Step 2: Convert to fraction form
   19,957,688.72/29,936,270.64 = 4,811,498.72/x
3. Step 3: Cross multiply
   19,957,688.72x = 29,936,270.64 × 4,811,498.72
4. Step 4: Simplify right side
   19,957,688.72x = 144,038,327,865,933.56
5. Step 5: Solve for x
   x = 144,038,327,865,933.56/19,957,688.72
6. Step 6: Final answer
   x = 7,217,184.81