Finding the Fourth Proportional to 86,100.96, 129,146.28 and 38,703.84

Step by Step Solution

1. Step 1: Write the proportion equation
   86,100.96 : 129,146.28 = 38,703.84 : x
2. Step 2: Convert to fraction form
   86,100.96/129,146.28 = 38,703.84/x
3. Step 3: Cross multiply
   86,100.96x = 129,146.28 × 38,703.84
4. Step 4: Simplify right side
   86,100.96x = 4,998,456,957.72
5. Step 5: Solve for x
   x = 4,998,456,957.72/86,100.96
6. Step 6: Final answer
   x = 58,053.44