Finding the Fourth Proportional to 17,717,404.10, 26,576,106.15 and 13,238,428.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,717,404.10 : 26,576,106.15 = 13,238,428.10 : x
2. Step 2: Convert to fraction form
   17,717,404.10/26,576,106.15 = 13,238,428.10/x
3. Step 3: Cross multiply
   17,717,404.10x = 26,576,106.15 × 13,238,428.10
4. Step 4: Simplify right side
   17,717,404.10x = 351,825,870,444,742.81
5. Step 5: Solve for x
   x = 351,825,870,444,742.81/17,717,404.10
6. Step 6: Final answer
   x = 19,857,642.15