Finding the Fourth Proportional to 218,807.48, 328,181.98 and 61,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   218,807.48 : 328,181.98 = 61,022.72 : x
2. Step 2: Convert to fraction form
   218,807.48/328,181.98 = 61,022.72/x
3. Step 3: Cross multiply
   218,807.48x = 328,181.98 × 61,022.72
4. Step 4: Simplify right side
   218,807.48x = 20,026,557,074.59
5. Step 5: Solve for x
   x = 20,026,557,074.59/218,807.48
6. Step 6: Final answer
   x = 91,525.93