Finding the Fourth Proportional to 138,762, 191,491.56 and 79,146

Step by Step Solution

1. Step 1: Write the proportion equation
   138,762 : 191,491.56 = 79,146 : x
2. Step 2: Convert to fraction form
   138,762/191,491.56 = 79,146/x
3. Step 3: Cross multiply
   138,762x = 191,491.56 × 79,146
4. Step 4: Simplify right side
   138,762x = 15,155,791,007.76
5. Step 5: Solve for x
   x = 15,155,791,007.76/138,762
6. Step 6: Final answer
   x = 109,221.48