Finding the Fourth Proportional to 99,030.49, 136,662.15 and 53,708.46

Step by Step Solution

1. Step 1: Write the proportion equation
   99,030.49 : 136,662.15 = 53,708.46 : x
2. Step 2: Convert to fraction form
   99,030.49/136,662.15 = 53,708.46/x
3. Step 3: Cross multiply
   99,030.49x = 136,662.15 × 53,708.46
4. Step 4: Simplify right side
   99,030.49x = 7,339,913,616.79
5. Step 5: Solve for x
   x = 7,339,913,616.79/99,030.49
6. Step 6: Final answer
   x = 74,117.71