Finding the Fourth Proportional to 52,431.96, 72,398.76 and 42,742.92

Step by Step Solution

1. Step 1: Write the proportion equation
   52,431.96 : 72,398.76 = 42,742.92 : x
2. Step 2: Convert to fraction form
   52,431.96/72,398.76 = 42,742.92/x
3. Step 3: Cross multiply
   52,431.96x = 72,398.76 × 42,742.92
4. Step 4: Simplify right side
   52,431.96x = 3,094,534,335.22
5. Step 5: Solve for x
   x = 3,094,534,335.22/52,431.96
6. Step 6: Final answer
   x = 59,020.00