Finding the Fourth Proportional to 93,314.22, 128,790.17 and 55,071.02

Step by Step Solution

1. Step 1: Write the proportion equation
   93,314.22 : 128,790.17 = 55,071.02 : x
2. Step 2: Convert to fraction form
   93,314.22/128,790.17 = 55,071.02/x
3. Step 3: Cross multiply
   93,314.22x = 128,790.17 × 55,071.02
4. Step 4: Simplify right side
   93,314.22x = 7,092,605,108.57
5. Step 5: Solve for x
   x = 7,092,605,108.57/93,314.22
6. Step 6: Final answer
   x = 76,007.76