Finding the Fourth Proportional to 52,367.42, 72,261.64 and 31,142.58

Step by Step Solution

1. Step 1: Write the proportion equation
   52,367.42 : 72,261.64 = 31,142.58 : x
2. Step 2: Convert to fraction form
   52,367.42/72,261.64 = 31,142.58/x
3. Step 3: Cross multiply
   52,367.42x = 72,261.64 × 31,142.58
4. Step 4: Simplify right side
   52,367.42x = 2,250,413,904.63
5. Step 5: Solve for x
   x = 2,250,413,904.63/52,367.42
6. Step 6: Final answer
   x = 42,973.55