Finding the Fourth Proportional to 84,517.30, 126,591.72 and 42,323.79

Step by Step Solution

1. Step 1: Write the proportion equation
   84,517.30 : 126,591.72 = 42,323.79 : x
2. Step 2: Convert to fraction form
   84,517.30/126,591.72 = 42,323.79/x
3. Step 3: Cross multiply
   84,517.30x = 126,591.72 × 42,323.79
4. Step 4: Simplify right side
   84,517.30x = 5,357,841,373.02
5. Step 5: Solve for x
   x = 5,357,841,373.02/84,517.30
6. Step 6: Final answer
   x = 63,393.43