Finding the Fourth Proportional to 42,415.94, 63,623.85 and 10,826.00

Step by Step Solution

1. Step 1: Write the proportion equation
   42,415.94 : 63,623.85 = 10,826.00 : x
2. Step 2: Convert to fraction form
   42,415.94/63,623.85 = 10,826.00/x
3. Step 3: Cross multiply
   42,415.94x = 63,623.85 × 10,826.00
4. Step 4: Simplify right side
   42,415.94x = 688,791,751.22
5. Step 5: Solve for x
   x = 688,791,751.22/42,415.94
6. Step 6: Final answer
   x = 16,238.98