Finding the Fourth Proportional to 12,702,111.61, 17,528,572.77 and 7,475,427.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,702,111.61 : 17,528,572.77 = 7,475,427.29 : x
2. Step 2: Convert to fraction form
   12,702,111.61/17,528,572.77 = 7,475,427.29/x
3. Step 3: Cross multiply
   12,702,111.61x = 17,528,572.77 × 7,475,427.29
4. Step 4: Simplify right side
   12,702,111.61x = 131,033,571,202,231.77
5. Step 5: Solve for x
   x = 131,033,571,202,231.77/12,702,111.61
6. Step 6: Final answer
   x = 10,315,888.82