Finding the Fourth Proportional to 42,196.64, 63,239.58 and 31,051.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,196.64 : 63,239.58 = 31,051.15 : x
2. Step 2: Convert to fraction form
   42,196.64/63,239.58 = 31,051.15/x
3. Step 3: Cross multiply
   42,196.64x = 63,239.58 × 31,051.15
4. Step 4: Simplify right side
   42,196.64x = 1,963,661,526.42
5. Step 5: Solve for x
   x = 1,963,661,526.42/42,196.64
6. Step 6: Final answer
   x = 46,535.97