Finding the Fourth Proportional to 57,120,147.86, 78,825,897.34 and 31,014,716.18

Step by Step Solution

1. Step 1: Write the proportion equation
   57,120,147.86 : 78,825,897.34 = 31,014,716.18 : x
2. Step 2: Convert to fraction form
   57,120,147.86/78,825,897.34 = 31,014,716.18/x
3. Step 3: Cross multiply
   57,120,147.86x = 78,825,897.34 × 31,014,716.18
4. Step 4: Simplify right side
   57,120,147.86x = 2,444,762,833,633,917
5. Step 5: Solve for x
   x = 2,444,762,833,633,917/57,120,147.86
6. Step 6: Final answer
   x = 42,800,358.98