Finding the Fourth Proportional to 191,567.88, 287,351.90 and 79,124.53

Step by Step Solution

1. Step 1: Write the proportion equation
   191,567.88 : 287,351.90 = 79,124.53 : x
2. Step 2: Convert to fraction form
   191,567.88/287,351.90 = 79,124.53/x
3. Step 3: Cross multiply
   191,567.88x = 287,351.90 × 79,124.53
4. Step 4: Simplify right side
   191,567.88x = 22,736,582,199.72
5. Step 5: Solve for x
   x = 22,736,582,199.72/191,567.88
6. Step 6: Final answer
   x = 118,686.82