Finding the Fourth Proportional to 42,366.16, 63,503.16 and 31,906

Step by Step Solution

1. Step 1: Write the proportion equation
   42,366.16 : 63,503.16 = 31,906 : x
2. Step 2: Convert to fraction form
   42,366.16/63,503.16 = 31,906/x
3. Step 3: Cross multiply
   42,366.16x = 63,503.16 × 31,906
4. Step 4: Simplify right side
   42,366.16x = 2,026,131,822.96
5. Step 5: Solve for x
   x = 2,026,131,822.96/42,366.16
6. Step 6: Final answer
   x = 47,824.30