Finding the Fourth Proportional to 42,308.83, 63,338.71 and 31,264.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,308.83 : 63,338.71 = 31,264.79 : x
2. Step 2: Convert to fraction form
   42,308.83/63,338.71 = 31,264.79/x
3. Step 3: Cross multiply
   42,308.83x = 63,338.71 × 31,264.79
4. Step 4: Simplify right side
   42,308.83x = 1,980,271,130.79
5. Step 5: Solve for x
   x = 1,980,271,130.79/42,308.83
6. Step 6: Final answer
   x = 46,805.15