Finding the Fourth Proportional to 57,795.30, 81,146.70 and 57,795.30

Step by Step Solution

1. Step 1: Write the proportion equation
   57,795.30 : 81,146.70 = 57,795.30 : x
2. Step 2: Convert to fraction form
   57,795.30/81,146.70 = 57,795.30/x
3. Step 3: Cross multiply
   57,795.30x = 81,146.70 × 57,795.30
4. Step 4: Simplify right side
   57,795.30x = 4,689,897,870.51
5. Step 5: Solve for x
   x = 4,689,897,870.51/57,795.30
6. Step 6: Final answer
   x = 81,146.70