Finding the Fourth Proportional to 59,345.07, 89,434.17 and 53,427.87

Step by Step Solution

1. Step 1: Write the proportion equation
   59,345.07 : 89,434.17 = 53,427.87 : x
2. Step 2: Convert to fraction form
   59,345.07/89,434.17 = 53,427.87/x
3. Step 3: Cross multiply
   59,345.07x = 89,434.17 × 53,427.87
4. Step 4: Simplify right side
   59,345.07x = 4,778,277,208.32
5. Step 5: Solve for x
   x = 4,778,277,208.32/59,345.07
6. Step 6: Final answer
   x = 80,516.83