Finding the Fourth Proportional to 42,532.32, 63,796.32 and 12,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,532.32 : 63,796.32 = 12,949.50 : x
2. Step 2: Convert to fraction form
   42,532.32/63,796.32 = 12,949.50/x
3. Step 3: Cross multiply
   42,532.32x = 63,796.32 × 12,949.50
4. Step 4: Simplify right side
   42,532.32x = 826,130,445.84
5. Step 5: Solve for x
   x = 826,130,445.84/42,532.32
6. Step 6: Final answer
   x = 19,423.59