Finding the Fourth Proportional to 42,478, 63,746.25 and 14,776

Step by Step Solution

1. Step 1: Write the proportion equation
   42,478 : 63,746.25 = 14,776 : x
2. Step 2: Convert to fraction form
   42,478/63,746.25 = 14,776/x
3. Step 3: Cross multiply
   42,478x = 63,746.25 × 14,776
4. Step 4: Simplify right side
   42,478x = 941,914,590
5. Step 5: Solve for x
   x = 941,914,590/42,478
6. Step 6: Final answer
   x = 22,174.17