Finding the Fourth Proportional to 55,403.01, 83,478.49 and 45,758.34

Step by Step Solution

1. Step 1: Write the proportion equation
   55,403.01 : 83,478.49 = 45,758.34 : x
2. Step 2: Convert to fraction form
   55,403.01/83,478.49 = 45,758.34/x
3. Step 3: Cross multiply
   55,403.01x = 83,478.49 × 45,758.34
4. Step 4: Simplify right side
   55,403.01x = 3,819,837,013.71
5. Step 5: Solve for x
   x = 3,819,837,013.71/55,403.01
6. Step 6: Final answer
   x = 68,946.38