Finding the Fourth Proportional to 99,924.71, 137,896.46 and 54,602.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,924.71 : 137,896.46 = 54,602.69 : x
2. Step 2: Convert to fraction form
   99,924.71/137,896.46 = 54,602.69/x
3. Step 3: Cross multiply
   99,924.71x = 137,896.46 × 54,602.69
4. Step 4: Simplify right side
   99,924.71x = 7,529,517,384.46
5. Step 5: Solve for x
   x = 7,529,517,384.46/99,924.71
6. Step 6: Final answer
   x = 75,351.91