Finding the Fourth Proportional to 78,736.38, 108,656.83 and 42,926.64

Step by Step Solution

1. Step 1: Write the proportion equation
   78,736.38 : 108,656.83 = 42,926.64 : x
2. Step 2: Convert to fraction form
   78,736.38/108,656.83 = 42,926.64/x
3. Step 3: Cross multiply
   78,736.38x = 108,656.83 × 42,926.64
4. Step 4: Simplify right side
   78,736.38x = 4,664,272,624.95
5. Step 5: Solve for x
   x = 4,664,272,624.95/78,736.38
6. Step 6: Final answer
   x = 59,239.11