Finding the Fourth Proportional to 99,289.69, 136,925.47 and 65,327.00

Step by Step Solution

1. Step 1: Write the proportion equation
   99,289.69 : 136,925.47 = 65,327.00 : x
2. Step 2: Convert to fraction form
   99,289.69/136,925.47 = 65,327.00/x
3. Step 3: Cross multiply
   99,289.69x = 136,925.47 × 65,327.00
4. Step 4: Simplify right side
   99,289.69x = 8,944,929,575.72
5. Step 5: Solve for x
   x = 8,944,929,575.72/99,289.69
6. Step 6: Final answer
   x = 90,089.21