Finding the Fourth Proportional to 62,991.78, 94,026.74 and 55,518.58

Step by Step Solution

1. Step 1: Write the proportion equation
   62,991.78 : 94,026.74 = 55,518.58 : x
2. Step 2: Convert to fraction form
   62,991.78/94,026.74 = 55,518.58/x
3. Step 3: Cross multiply
   62,991.78x = 94,026.74 × 55,518.58
4. Step 4: Simplify right side
   62,991.78x = 5,220,231,086.83
5. Step 5: Solve for x
   x = 5,220,231,086.83/62,991.78
6. Step 6: Final answer
   x = 82,871.62