Finding the Fourth Proportional to 218,795.94, 328,196.52 and 61,014.78

Step by Step Solution

1. Step 1: Write the proportion equation
   218,795.94 : 328,196.52 = 61,014.78 : x
2. Step 2: Convert to fraction form
   218,795.94/328,196.52 = 61,014.78/x
3. Step 3: Cross multiply
   218,795.94x = 328,196.52 × 61,014.78
4. Step 4: Simplify right side
   218,795.94x = 20,024,838,464.57
5. Step 5: Solve for x
   x = 20,024,838,464.57/218,795.94
6. Step 6: Final answer
   x = 91,522.90