Finding the Fourth Proportional to 85,643,728.76, 118,188,465.15 and 46,485,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,643,728.76 : 118,188,465.15 = 46,485,513.50 : x
2. Step 2: Convert to fraction form
   85,643,728.76/118,188,465.15 = 46,485,513.50/x
3. Step 3: Cross multiply
   85,643,728.76x = 118,188,465.15 × 46,485,513.50
4. Step 4: Simplify right side
   85,643,728.76x = 5,494,051,491,683,662
5. Step 5: Solve for x
   x = 5,494,051,491,683,662/85,643,728.76
6. Step 6: Final answer
   x = 64,150,073.47