Finding the Fourth Proportional to 107,191.47, 160,883.57 and 78,764.58

Step by Step Solution

1. Step 1: Write the proportion equation
   107,191.47 : 160,883.57 = 78,764.58 : x
2. Step 2: Convert to fraction form
   107,191.47/160,883.57 = 78,764.58/x
3. Step 3: Cross multiply
   107,191.47x = 160,883.57 × 78,764.58
4. Step 4: Simplify right side
   107,191.47x = 12,671,926,819.95
5. Step 5: Solve for x
   x = 12,671,926,819.95/107,191.47
6. Step 6: Final answer
   x = 118,217.68