Finding the Fourth Proportional to 42,978.76, 59,310.78 and 23,858.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,978.76 : 59,310.78 = 23,858.81 : x
2. Step 2: Convert to fraction form
   42,978.76/59,310.78 = 23,858.81/x
3. Step 3: Cross multiply
   42,978.76x = 59,310.78 × 23,858.81
4. Step 4: Simplify right side
   42,978.76x = 1,415,084,630.97
5. Step 5: Solve for x
   x = 1,415,084,630.97/42,978.76
6. Step 6: Final answer
   x = 32,925.21