Finding the Fourth Proportional to 12,111,477.44, 18,152,256.52 and 10,393,545.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111,477.44 : 18,152,256.52 = 10,393,545.20 : x
2. Step 2: Convert to fraction form
   12,111,477.44/18,152,256.52 = 10,393,545.20/x
3. Step 3: Cross multiply
   12,111,477.44x = 18,152,256.52 × 10,393,545.20
4. Step 4: Simplify right side
   12,111,477.44x = 188,666,298,622,614.69
5. Step 5: Solve for x
   x = 188,666,298,622,614.69/12,111,477.44
6. Step 6: Final answer
   x = 15,577,480.09