Finding the Fourth Proportional to 99,099.32, 136,870.67 and 65,259.14

Step by Step Solution

1. Step 1: Write the proportion equation
   99,099.32 : 136,870.67 = 65,259.14 : x
2. Step 2: Convert to fraction form
   99,099.32/136,870.67 = 65,259.14/x
3. Step 3: Cross multiply
   99,099.32x = 136,870.67 × 65,259.14
4. Step 4: Simplify right side
   99,099.32x = 8,932,061,694.22
5. Step 5: Solve for x
   x = 8,932,061,694.22/99,099.32
6. Step 6: Final answer
   x = 90,132.43