Finding the Fourth Proportional to 13,150,412.12, 18,144,557.72 and 7,851,075.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150,412.12 : 18,144,557.72 = 7,851,075.68 : x
2. Step 2: Convert to fraction form
   13,150,412.12/18,144,557.72 = 7,851,075.68/x
3. Step 3: Cross multiply
   13,150,412.12x = 18,144,557.72 × 7,851,075.68
4. Step 4: Simplify right side
   13,150,412.12x = 142,454,295,849,662.09
5. Step 5: Solve for x
   x = 142,454,295,849,662.09/13,150,412.12
6. Step 6: Final answer
   x = 10,832,686.80