Finding the Fourth Proportional to 64,426.78, 88,863.96 and 62,259.22

Step by Step Solution

1. Step 1: Write the proportion equation
   64,426.78 : 88,863.96 = 62,259.22 : x
2. Step 2: Convert to fraction form
   64,426.78/88,863.96 = 62,259.22/x
3. Step 3: Cross multiply
   64,426.78x = 88,863.96 × 62,259.22
4. Step 4: Simplify right side
   64,426.78x = 5,532,600,835.71
5. Step 5: Solve for x
   x = 5,532,600,835.71/64,426.78
6. Step 6: Final answer
   x = 85,874.24