Finding the Fourth Proportional to 42,682,360.86, 64,033,726.50 and 13,928,549.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,682,360.86 : 64,033,726.50 = 13,928,549.94 : x
2. Step 2: Convert to fraction form
   42,682,360.86/64,033,726.50 = 13,928,549.94/x
3. Step 3: Cross multiply
   42,682,360.86x = 64,033,726.50 × 13,928,549.94
4. Step 4: Simplify right side
   42,682,360.86x = 891,896,957,399,551.38
5. Step 5: Solve for x
   x = 891,896,957,399,551.38/42,682,360.86
6. Step 6: Final answer
   x = 20,896,148.65