Finding the Fourth Proportional to 42,274.32, 63,411.21 and 12,692.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,274.32 : 63,411.21 = 12,692.04 : x
2. Step 2: Convert to fraction form
   42,274.32/63,411.21 = 12,692.04/x
3. Step 3: Cross multiply
   42,274.32x = 63,411.21 × 12,692.04
4. Step 4: Simplify right side
   42,274.32x = 804,817,613.77
5. Step 5: Solve for x
   x = 804,817,613.77/42,274.32
6. Step 6: Final answer
   x = 19,037.98