Finding the Fourth Proportional to 35,053.98, 48,344.31 and 31,230.78

Step by Step Solution

1. Step 1: Write the proportion equation
   35,053.98 : 48,344.31 = 31,230.78 : x
2. Step 2: Convert to fraction form
   35,053.98/48,344.31 = 31,230.78/x
3. Step 3: Cross multiply
   35,053.98x = 48,344.31 × 31,230.78
4. Step 4: Simplify right side
   35,053.98x = 1,509,830,509.86
5. Step 5: Solve for x
   x = 1,509,830,509.86/35,053.98
6. Step 6: Final answer
   x = 43,071.59