Finding the Fourth Proportional to 89,152,648.38, 122,978,529.75 and 56,060,523.90

Step by Step Solution

1. Step 1: Write the proportion equation
   89,152,648.38 : 122,978,529.75 = 56,060,523.90 : x
2. Step 2: Convert to fraction form
   89,152,648.38/122,978,529.75 = 56,060,523.90/x
3. Step 3: Cross multiply
   89,152,648.38x = 122,978,529.75 × 56,060,523.90
4. Step 4: Simplify right side
   89,152,648.38x = 6,894,240,806,236,736
5. Step 5: Solve for x
   x = 6,894,240,806,236,736/89,152,648.38
6. Step 6: Final answer
   x = 77,330,745.99