Finding the Fourth Proportional to 78,104.73, 107,784.51 and 42,294.74

Step by Step Solution

1. Step 1: Write the proportion equation
   78,104.73 : 107,784.51 = 42,294.74 : x
2. Step 2: Convert to fraction form
   78,104.73/107,784.51 = 42,294.74/x
3. Step 3: Cross multiply
   78,104.73x = 107,784.51 × 42,294.74
4. Step 4: Simplify right side
   78,104.73x = 4,558,717,128.95
5. Step 5: Solve for x
   x = 4,558,717,128.95/78,104.73
6. Step 6: Final answer
   x = 58,366.72