Finding the Fourth Proportional to 12,456,053.58, 18,681,925.86 and 5,631,039.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,456,053.58 : 18,681,925.86 = 5,631,039.54 : x
2. Step 2: Convert to fraction form
   12,456,053.58/18,681,925.86 = 5,631,039.54/x
3. Step 3: Cross multiply
   12,456,053.58x = 18,681,925.86 × 5,631,039.54
4. Step 4: Simplify right side
   12,456,053.58x = 105,198,663,201,008.50
5. Step 5: Solve for x
   x = 105,198,663,201,008.50/12,456,053.58
6. Step 6: Final answer
   x = 8,445,585.32