Finding the Fourth Proportional to 99,616.42, 137,459.59 and 59,324.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,616.42 : 137,459.59 = 59,324.59 : x
2. Step 2: Convert to fraction form
   99,616.42/137,459.59 = 59,324.59/x
3. Step 3: Cross multiply
   99,616.42x = 137,459.59 × 59,324.59
4. Step 4: Simplify right side
   99,616.42x = 8,154,733,818.32
5. Step 5: Solve for x
   x = 8,154,733,818.32/99,616.42
6. Step 6: Final answer
   x = 81,861.34