Finding the Fourth Proportional to 42,237.32, 63,437.99 and 31,100.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,237.32 : 63,437.99 = 31,100.03 : x
2. Step 2: Convert to fraction form
   42,237.32/63,437.99 = 31,100.03/x
3. Step 3: Cross multiply
   42,237.32x = 63,437.99 × 31,100.03
4. Step 4: Simplify right side
   42,237.32x = 1,972,922,919.45
5. Step 5: Solve for x
   x = 1,972,922,919.45/42,237.32
6. Step 6: Final answer
   x = 46,710.42