Finding the Fourth Proportional to 84,042.22, 115,978.28 and 45,801.78

Step by Step Solution

1. Step 1: Write the proportion equation
   84,042.22 : 115,978.28 = 45,801.78 : x
2. Step 2: Convert to fraction form
   84,042.22/115,978.28 = 45,801.78/x
3. Step 3: Cross multiply
   84,042.22x = 115,978.28 × 45,801.78
4. Step 4: Simplify right side
   84,042.22x = 5,312,011,665.34
5. Step 5: Solve for x
   x = 5,312,011,665.34/84,042.22
6. Step 6: Final answer
   x = 63,206.47