Finding the Fourth Proportional to 65,194.02, 89,621.55 and 56,085.99

Step by Step Solution

1. Step 1: Write the proportion equation
   65,194.02 : 89,621.55 = 56,085.99 : x
2. Step 2: Convert to fraction form
   65,194.02/89,621.55 = 56,085.99/x
3. Step 3: Cross multiply
   65,194.02x = 89,621.55 × 56,085.99
4. Step 4: Simplify right side
   65,194.02x = 5,026,513,357.08
5. Step 5: Solve for x
   x = 5,026,513,357.08/65,194.02
6. Step 6: Final answer
   x = 77,100.83