Finding the Fourth Proportional to 93,315.06, 128,784.02 and 55,087.22

Step by Step Solution

1. Step 1: Write the proportion equation
   93,315.06 : 128,784.02 = 55,087.22 : x
2. Step 2: Convert to fraction form
   93,315.06/128,784.02 = 55,087.22/x
3. Step 3: Cross multiply
   93,315.06x = 128,784.02 × 55,087.22
4. Step 4: Simplify right side
   93,315.06x = 7,094,353,642.22
5. Step 5: Solve for x
   x = 7,094,353,642.22/93,315.06
6. Step 6: Final answer
   x = 76,025.82