Finding the Fourth Proportional to 42,368.06, 63,552.45 and 10,778.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,368.06 : 63,552.45 = 10,778.15 : x
2. Step 2: Convert to fraction form
   42,368.06/63,552.45 = 10,778.15/x
3. Step 3: Cross multiply
   42,368.06x = 63,552.45 × 10,778.15
4. Step 4: Simplify right side
   42,368.06x = 684,977,865.91
5. Step 5: Solve for x
   x = 684,977,865.91/42,368.06
6. Step 6: Final answer
   x = 16,167.32