Finding the Fourth Proportional to 12,812,028.59, 17,680,599.20 and 7,010,810.11

Step by Step Solution

1. Step 1: Write the proportion equation
   12,812,028.59 : 17,680,599.20 = 7,010,810.11 : x
2. Step 2: Convert to fraction form
   12,812,028.59/17,680,599.20 = 7,010,810.11/x
3. Step 3: Cross multiply
   12,812,028.59x = 17,680,599.20 × 7,010,810.11
4. Step 4: Simplify right side
   12,812,028.59x = 123,955,323,661,845.69
5. Step 5: Solve for x
   x = 123,955,323,661,845.69/12,812,028.59
6. Step 6: Final answer
   x = 9,674,917.81