Finding the Fourth Proportional to 107,965.12, 148,926.54 and 69,664.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,965.12 : 148,926.54 = 69,664.72 : x
2. Step 2: Convert to fraction form
   107,965.12/148,926.54 = 69,664.72/x
3. Step 3: Cross multiply
   107,965.12x = 148,926.54 × 69,664.72
4. Step 4: Simplify right side
   107,965.12x = 10,374,925,709.67
5. Step 5: Solve for x
   x = 10,374,925,709.67/107,965.12
6. Step 6: Final answer
   x = 96,095.16