Finding the Fourth Proportional to 12,756,557.31, 19,143,802.71 and 11,536,900.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,756,557.31 : 19,143,802.71 = 11,536,900.26 : x
2. Step 2: Convert to fraction form
   12,756,557.31/19,143,802.71 = 11,536,900.26/x
3. Step 3: Cross multiply
   12,756,557.31x = 19,143,802.71 × 11,536,900.26
4. Step 4: Simplify right side
   12,756,557.31x = 220,860,142,462,387.72
5. Step 5: Solve for x
   x = 220,860,142,462,387.72/12,756,557.31
6. Step 6: Final answer
   x = 17,313,459.82