Finding the Fourth Proportional to 99,305.39, 137,061.36 and 59,011.37

Step by Step Solution

1. Step 1: Write the proportion equation
   99,305.39 : 137,061.36 = 59,011.37 : x
2. Step 2: Convert to fraction form
   99,305.39/137,061.36 = 59,011.37/x
3. Step 3: Cross multiply
   99,305.39x = 137,061.36 × 59,011.37
4. Step 4: Simplify right side
   99,305.39x = 8,088,178,456.34
5. Step 5: Solve for x
   x = 8,088,178,456.34/99,305.39
6. Step 6: Final answer
   x = 81,447.53