Finding the Fourth Proportional to 157,111.60, 235,527.72 and 57,253

Step by Step Solution

1. Step 1: Write the proportion equation
   157,111.60 : 235,527.72 = 57,253 : x
2. Step 2: Convert to fraction form
   157,111.60/235,527.72 = 57,253/x
3. Step 3: Cross multiply
   157,111.60x = 235,527.72 × 57,253
4. Step 4: Simplify right side
   157,111.60x = 13,484,668,553.16
5. Step 5: Solve for x
   x = 13,484,668,553.16/157,111.60
6. Step 6: Final answer
   x = 85,828.60