Finding the Fourth Proportional to 78,194.32, 107,908.40 and 42,384.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,194.32 : 107,908.40 = 42,384.48 : x
2. Step 2: Convert to fraction form
   78,194.32/107,908.40 = 42,384.48/x
3. Step 3: Cross multiply
   78,194.32x = 107,908.40 × 42,384.48
4. Step 4: Simplify right side
   78,194.32x = 4,573,640,884.52
5. Step 5: Solve for x
   x = 4,573,640,884.52/78,194.32
6. Step 6: Final answer
   x = 58,490.70