Finding the Fourth Proportional to 107,205.33, 147,940.25 and 61,890.69

Step by Step Solution

1. Step 1: Write the proportion equation
   107,205.33 : 147,940.25 = 61,890.69 : x
2. Step 2: Convert to fraction form
   107,205.33/147,940.25 = 61,890.69/x
3. Step 3: Cross multiply
   107,205.33x = 147,940.25 × 61,890.69
4. Step 4: Simplify right side
   107,205.33x = 9,156,123,841.82
5. Step 5: Solve for x
   x = 9,156,123,841.82/107,205.33
6. Step 6: Final answer
   x = 85,407.36