Finding the Fourth Proportional to 78,642.82, 108,528.33 and 42,832.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,642.82 : 108,528.33 = 42,832.81 : x
2. Step 2: Convert to fraction form
   78,642.82/108,528.33 = 42,832.81/x
3. Step 3: Cross multiply
   78,642.82x = 108,528.33 × 42,832.81
4. Step 4: Simplify right side
   78,642.82x = 4,648,573,338.51
5. Step 5: Solve for x
   x = 4,648,573,338.51/78,642.82
6. Step 6: Final answer
   x = 59,109.95