Finding the Fourth Proportional to 99,081.77, 148,650.21 and 39,903.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,081.77 : 148,650.21 = 39,903.59 : x
2. Step 2: Convert to fraction form
   99,081.77/148,650.21 = 39,903.59/x
3. Step 3: Cross multiply
   99,081.77x = 148,650.21 × 39,903.59
4. Step 4: Simplify right side
   99,081.77x = 5,931,677,033.25
5. Step 5: Solve for x
   x = 5,931,677,033.25/99,081.77
6. Step 6: Final answer
   x = 59,866.48