Finding the Fourth Proportional to 60,967.76, 90,903.92 and 55,760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,967.76 : 90,903.92 = 55,760.72 : x
2. Step 2: Convert to fraction form
   60,967.76/90,903.92 = 55,760.72/x
3. Step 3: Cross multiply
   60,967.76x = 90,903.92 × 55,760.72
4. Step 4: Simplify right side
   60,967.76x = 5,068,868,030.02
5. Step 5: Solve for x
   x = 5,068,868,030.02/60,967.76
6. Step 6: Final answer
   x = 83,140.14