Finding the Fourth Proportional to 93,085.87, 128,460.72 and 52,802.35

Step by Step Solution

1. Step 1: Write the proportion equation
   93,085.87 : 128,460.72 = 52,802.35 : x
2. Step 2: Convert to fraction form
   93,085.87/128,460.72 = 52,802.35/x
3. Step 3: Cross multiply
   93,085.87x = 128,460.72 × 52,802.35
4. Step 4: Simplify right side
   93,085.87x = 6,783,027,898.69
5. Step 5: Solve for x
   x = 6,783,027,898.69/93,085.87
6. Step 6: Final answer
   x = 72,868.50