Finding the Fourth Proportional to 328,066.32, 492,099.51 and 78,748.32

Step by Step Solution

1. Step 1: Write the proportion equation
   328,066.32 : 492,099.51 = 78,748.32 : x
2. Step 2: Convert to fraction form
   328,066.32/492,099.51 = 78,748.32/x
3. Step 3: Cross multiply
   328,066.32x = 492,099.51 × 78,748.32
4. Step 4: Simplify right side
   328,066.32x = 38,752,009,685.32
5. Step 5: Solve for x
   x = 38,752,009,685.32/328,066.32
6. Step 6: Final answer
   x = 118,122.49