Finding the Fourth Proportional to 52,431.68, 72,292.83 and 42,836.02

Step by Step Solution

1. Step 1: Write the proportion equation
   52,431.68 : 72,292.83 = 42,836.02 : x
2. Step 2: Convert to fraction form
   52,431.68/72,292.83 = 42,836.02/x
3. Step 3: Cross multiply
   52,431.68x = 72,292.83 × 42,836.02
4. Step 4: Simplify right side
   52,431.68x = 3,096,737,111.74
5. Step 5: Solve for x
   x = 3,096,737,111.74/52,431.68
6. Step 6: Final answer
   x = 59,062.33