Finding the Fourth Proportional to 65,342.42, 90,158.80 and 42,714.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,342.42 : 90,158.80 = 42,714.72 : x
2. Step 2: Convert to fraction form
   65,342.42/90,158.80 = 42,714.72/x
3. Step 3: Cross multiply
   65,342.42x = 90,158.80 × 42,714.72
4. Step 4: Simplify right side
   65,342.42x = 3,851,107,897.54
5. Step 5: Solve for x
   x = 3,851,107,897.54/65,342.42
6. Step 6: Final answer
   x = 58,937.33