Finding the Fourth Proportional to 13,169,185.56, 19,852,484.08 and 12,291,323.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,169,185.56 : 19,852,484.08 = 12,291,323.76 : x
2. Step 2: Convert to fraction form
   13,169,185.56/19,852,484.08 = 12,291,323.76/x
3. Step 3: Cross multiply
   13,169,185.56x = 19,852,484.08 × 12,291,323.76
4. Step 4: Simplify right side
   13,169,185.56x = 244,013,309,267,525.72
5. Step 5: Solve for x
   x = 244,013,309,267,525.72/13,169,185.56
6. Step 6: Final answer
   x = 18,529,111.63