Finding the Fourth Proportional to 12,771,491.29, 17,619,128.88 and 7,810,149.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,771,491.29 : 17,619,128.88 = 7,810,149.53 : x
2. Step 2: Convert to fraction form
   12,771,491.29/17,619,128.88 = 7,810,149.53/x
3. Step 3: Cross multiply
   12,771,491.29x = 17,619,128.88 × 7,810,149.53
4. Step 4: Simplify right side
   12,771,491.29x = 137,608,031,141,141.42
5. Step 5: Solve for x
   x = 137,608,031,141,141.42/12,771,491.29
6. Step 6: Final answer
   x = 10,774,625.14