Finding the Fourth Proportional to 138,630.76, 191,301.54 and 79,010.92

Step by Step Solution

1. Step 1: Write the proportion equation
   138,630.76 : 191,301.54 = 79,010.92 : x
2. Step 2: Convert to fraction form
   138,630.76/191,301.54 = 79,010.92/x
3. Step 3: Cross multiply
   138,630.76x = 191,301.54 × 79,010.92
4. Step 4: Simplify right side
   138,630.76x = 15,114,910,672.82
5. Step 5: Solve for x
   x = 15,114,910,672.82/138,630.76
6. Step 6: Final answer
   x = 109,029.99