Finding the Fourth Proportional to 93,719.76, 129,320.52 and 55,986

Step by Step Solution

1. Step 1: Write the proportion equation
   93,719.76 : 129,320.52 = 55,986 : x
2. Step 2: Convert to fraction form
   93,719.76/129,320.52 = 55,986/x
3. Step 3: Cross multiply
   93,719.76x = 129,320.52 × 55,986
4. Step 4: Simplify right side
   93,719.76x = 7,240,138,632.72
5. Step 5: Solve for x
   x = 7,240,138,632.72/93,719.76
6. Step 6: Final answer
   x = 77,253.06