Finding the Fourth Proportional to 191,271.38, 286,801.74 and 78,926.06

Step by Step Solution

1. Step 1: Write the proportion equation
   191,271.38 : 286,801.74 = 78,926.06 : x
2. Step 2: Convert to fraction form
   191,271.38/286,801.74 = 78,926.06/x
3. Step 3: Cross multiply
   191,271.38x = 286,801.74 × 78,926.06
4. Step 4: Simplify right side
   191,271.38x = 22,636,131,339.34
5. Step 5: Solve for x
   x = 22,636,131,339.34/191,271.38
6. Step 6: Final answer
   x = 118,345.63