Finding the Fourth Proportional to 65,529.84, 90,339.57 and 55,417.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,529.84 : 90,339.57 = 55,417.62 : x
2. Step 2: Convert to fraction form
   65,529.84/90,339.57 = 55,417.62/x
3. Step 3: Cross multiply
   65,529.84x = 90,339.57 × 55,417.62
4. Step 4: Simplify right side
   65,529.84x = 5,006,403,961.22
5. Step 5: Solve for x
   x = 5,006,403,961.22/65,529.84
6. Step 6: Final answer
   x = 76,398.84