Finding the Fourth Proportional to 19,960,429.41, 27,556,359.96 and 12,997,174.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,960,429.41 : 27,556,359.96 = 12,997,174.50 : x
2. Step 2: Convert to fraction form
   19,960,429.41/27,556,359.96 = 12,997,174.50/x
3. Step 3: Cross multiply
   19,960,429.41x = 27,556,359.96 × 12,997,174.50
4. Step 4: Simplify right side
   19,960,429.41x = 358,154,818,984,933.06
5. Step 5: Solve for x
   x = 358,154,818,984,933.06/19,960,429.41
6. Step 6: Final answer
   x = 17,943,242.18