Finding the Fourth Proportional to 12,812,154.34, 17,680,772.28 and 7,010,936.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,812,154.34 : 17,680,772.28 = 7,010,936.78 : x
2. Step 2: Convert to fraction form
   12,812,154.34/17,680,772.28 = 7,010,936.78/x
3. Step 3: Cross multiply
   12,812,154.34x = 17,680,772.28 × 7,010,936.78
4. Step 4: Simplify right side
   12,812,154.34x = 123,958,776,676,656.47
5. Step 5: Solve for x
   x = 123,958,776,676,656.47/12,812,154.34
6. Step 6: Final answer
   x = 9,675,092.37