Finding the Fourth Proportional to 62,980.28, 94,009.61 and 55,507.08

Step by Step Solution

1. Step 1: Write the proportion equation
   62,980.28 : 94,009.61 = 55,507.08 : x
2. Step 2: Convert to fraction form
   62,980.28/94,009.61 = 55,507.08/x
3. Step 3: Cross multiply
   62,980.28x = 94,009.61 × 55,507.08
4. Step 4: Simplify right side
   62,980.28x = 5,218,198,665.50
5. Step 5: Solve for x
   x = 5,218,198,665.50/62,980.28
6. Step 6: Final answer
   x = 82,854.49