Finding the Fourth Proportional to 19,811,293.10, 27,679,123.30 and 19,811,293.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,811,293.10 : 27,679,123.30 = 19,811,293.10 : x
2. Step 2: Convert to fraction form
   19,811,293.10/27,679,123.30 = 19,811,293.10/x
3. Step 3: Cross multiply
   19,811,293.10x = 27,679,123.30 × 19,811,293.10
4. Step 4: Simplify right side
   19,811,293.10x = 548,359,224,447,339.31
5. Step 5: Solve for x
   x = 548,359,224,447,339.31/19,811,293.10
6. Step 6: Final answer
   x = 27,679,123.30