Finding the Fourth Proportional to 99,410.40, 137,185.28 and 59,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   99,410.40 : 137,185.28 = 59,123.27 : x
2. Step 2: Convert to fraction form
   99,410.40/137,185.28 = 59,123.27/x
3. Step 3: Cross multiply
   99,410.40x = 137,185.28 × 59,123.27
4. Step 4: Simplify right side
   99,410.40x = 8,110,842,053.85
5. Step 5: Solve for x
   x = 8,110,842,053.85/99,410.40
6. Step 6: Final answer
   x = 81,589.48