Finding the Fourth Proportional to 12,855,343.68, 17,748,684.72 and 7,965,754.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,855,343.68 : 17,748,684.72 = 7,965,754.56 : x
2. Step 2: Convert to fraction form
   12,855,343.68/17,748,684.72 = 7,965,754.56/x
3. Step 3: Cross multiply
   12,855,343.68x = 17,748,684.72 × 7,965,754.56
4. Step 4: Simplify right side
   12,855,343.68x = 141,381,666,242,342.31
5. Step 5: Solve for x
   x = 141,381,666,242,342.31/12,855,343.68
6. Step 6: Final answer
   x = 10,997,890.82