Finding the Fourth Proportional to 42,158.16, 63,269.88 and 15,886.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,158.16 : 63,269.88 = 15,886.80 : x
2. Step 2: Convert to fraction form
   42,158.16/63,269.88 = 15,886.80/x
3. Step 3: Cross multiply
   42,158.16x = 63,269.88 × 15,886.80
4. Step 4: Simplify right side
   42,158.16x = 1,005,155,929.58
5. Step 5: Solve for x
   x = 1,005,155,929.58/42,158.16
6. Step 6: Final answer
   x = 23,842.50