Finding the Fourth Proportional to 78,691.82, 108,594.52 and 42,881.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,691.82 : 108,594.52 = 42,881.77 : x
2. Step 2: Convert to fraction form
   78,691.82/108,594.52 = 42,881.77/x
3. Step 3: Cross multiply
   78,691.82x = 108,594.52 × 42,881.77
4. Step 4: Simplify right side
   78,691.82x = 4,656,725,499.65
5. Step 5: Solve for x
   x = 4,656,725,499.65/78,691.82
6. Step 6: Final answer
   x = 59,176.74