Finding the Fourth Proportional to 57,120,151.86, 78,825,902.88 and 31,014,720.18

Step by Step Solution

1. Step 1: Write the proportion equation
   57,120,151.86 : 78,825,902.88 = 31,014,720.18 : x
2. Step 2: Convert to fraction form
   57,120,151.86/78,825,902.88 = 31,014,720.18/x
3. Step 3: Cross multiply
   57,120,151.86x = 78,825,902.88 × 31,014,720.18
4. Step 4: Simplify right side
   57,120,151.86x = 2,444,763,320,759,056
5. Step 5: Solve for x
   x = 2,444,763,320,759,056/57,120,151.86
6. Step 6: Final answer
   x = 42,800,364.51