Finding the Fourth Proportional to 99,929.81, 137,903.52 and 54,607.82

Step by Step Solution

1. Step 1: Write the proportion equation
   99,929.81 : 137,903.52 = 54,607.82 : x
2. Step 2: Convert to fraction form
   99,929.81/137,903.52 = 54,607.82/x
3. Step 3: Cross multiply
   99,929.81x = 137,903.52 × 54,607.82
4. Step 4: Simplify right side
   99,929.81x = 7,530,609,908.01
5. Step 5: Solve for x
   x = 7,530,609,908.01/99,929.81
6. Step 6: Final answer
   x = 75,359.00