Finding the Fourth Proportional to 77,085.59, 106,395.26 and 46,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,085.59 : 106,395.26 = 46,864.50 : x
2. Step 2: Convert to fraction form
   77,085.59/106,395.26 = 46,864.50/x
3. Step 3: Cross multiply
   77,085.59x = 106,395.26 × 46,864.50
4. Step 4: Simplify right side
   77,085.59x = 4,986,160,662.27
5. Step 5: Solve for x
   x = 4,986,160,662.27/77,085.59
6. Step 6: Final answer
   x = 64,683.43