Finding the Fourth Proportional to 108,784.98, 150,123.70 and 61,035.21

Step by Step Solution

1. Step 1: Write the proportion equation
   108,784.98 : 150,123.70 = 61,035.21 : x
2. Step 2: Convert to fraction form
   108,784.98/150,123.70 = 61,035.21/x
3. Step 3: Cross multiply
   108,784.98x = 150,123.70 × 61,035.21
4. Step 4: Simplify right side
   108,784.98x = 9,162,830,804.86
5. Step 5: Solve for x
   x = 9,162,830,804.86/108,784.98
6. Step 6: Final answer
   x = 84,228.83