Finding the Fourth Proportional to 60,434.01, 90,207.39 and 55,980.73

Step by Step Solution

1. Step 1: Write the proportion equation
   60,434.01 : 90,207.39 = 55,980.73 : x
2. Step 2: Convert to fraction form
   60,434.01/90,207.39 = 55,980.73/x
3. Step 3: Cross multiply
   60,434.01x = 90,207.39 × 55,980.73
4. Step 4: Simplify right side
   60,434.01x = 5,049,875,263.69
5. Step 5: Solve for x
   x = 5,049,875,263.69/60,434.01
6. Step 6: Final answer
   x = 83,560.16