Finding the Fourth Proportional to 84,549.02, 126,763.46 and 42,398.69

Step by Step Solution

1. Step 1: Write the proportion equation
   84,549.02 : 126,763.46 = 42,398.69 : x
2. Step 2: Convert to fraction form
   84,549.02/126,763.46 = 42,398.69/x
3. Step 3: Cross multiply
   84,549.02x = 126,763.46 × 42,398.69
4. Step 4: Simplify right side
   84,549.02x = 5,374,604,748.78
5. Step 5: Solve for x
   x = 5,374,604,748.78/84,549.02
6. Step 6: Final answer
   x = 63,567.91