Finding the Fourth Proportional to 77,069.58, 106,388.72 and 46,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,069.58 : 106,388.72 = 46,864.50 : x
2. Step 2: Convert to fraction form
   77,069.58/106,388.72 = 46,864.50/x
3. Step 3: Cross multiply
   77,069.58x = 106,388.72 × 46,864.50
4. Step 4: Simplify right side
   77,069.58x = 4,985,854,168.44
5. Step 5: Solve for x
   x = 4,985,854,168.44/77,069.58
6. Step 6: Final answer
   x = 64,692.89