Finding the Fourth Proportional to 99,118.71, 136,783.94 and 53,796.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,118.71 : 136,783.94 = 53,796.69 : x
2. Step 2: Convert to fraction form
   99,118.71/136,783.94 = 53,796.69/x
3. Step 3: Cross multiply
   99,118.71x = 136,783.94 × 53,796.69
4. Step 4: Simplify right side
   99,118.71x = 7,358,522,948.18
5. Step 5: Solve for x
   x = 7,358,522,948.18/99,118.71
6. Step 6: Final answer
   x = 74,239.49