Finding the Fourth Proportional to 12,402,608.94, 17,111,753.55 and 7,242,247.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402,608.94 : 17,111,753.55 = 7,242,247.98 : x
2. Step 2: Convert to fraction form
   12,402,608.94/17,111,753.55 = 7,242,247.98/x
3. Step 3: Cross multiply
   12,402,608.94x = 17,111,753.55 × 7,242,247.98
4. Step 4: Simplify right side
   12,402,608.94x = 123,927,562,581,745.34
5. Step 5: Solve for x
   x = 123,927,562,581,745.34/12,402,608.94
6. Step 6: Final answer
   x = 9,992,055.96