Finding the Fourth Proportional to 45,789.57, 63,154.89 and 39,427.02

Step by Step Solution

1. Step 1: Write the proportion equation
   45,789.57 : 63,154.89 = 39,427.02 : x
2. Step 2: Convert to fraction form
   45,789.57/63,154.89 = 39,427.02/x
3. Step 3: Cross multiply
   45,789.57x = 63,154.89 × 39,427.02
4. Step 4: Simplify right side
   45,789.57x = 2,490,009,111.13
5. Step 5: Solve for x
   x = 2,490,009,111.13/45,789.57
6. Step 6: Final answer
   x = 54,379.39