Finding the Fourth Proportional to 64,112.55, 88,487.54 and 42,270.47

Step by Step Solution

1. Step 1: Write the proportion equation
   64,112.55 : 88,487.54 = 42,270.47 : x
2. Step 2: Convert to fraction form
   64,112.55/88,487.54 = 42,270.47/x
3. Step 3: Cross multiply
   64,112.55x = 88,487.54 × 42,270.47
4. Step 4: Simplify right side
   64,112.55x = 3,740,409,693.59
5. Step 5: Solve for x
   x = 3,740,409,693.59/64,112.55
6. Step 6: Final answer
   x = 58,341.30