Finding the Fourth Proportional to 57,120,156.64, 78,823,605.28 and 31,014,076.96

Step by Step Solution

1. Step 1: Write the proportion equation
   57,120,156.64 : 78,823,605.28 = 31,014,076.96 : x
2. Step 2: Convert to fraction form
   57,120,156.64/78,823,605.28 = 31,014,076.96/x
3. Step 3: Cross multiply
   57,120,156.64x = 78,823,605.28 × 31,014,076.96
4. Step 4: Simplify right side
   57,120,156.64x = 2,444,641,360,418,582.50
5. Step 5: Solve for x
   x = 2,444,641,360,418,582.50/57,120,156.64
6. Step 6: Final answer
   x = 42,798,225.78