Finding the Fourth Proportional to 57,120,146.86, 78,825,895.96 and 31,014,715.18

Step by Step Solution

1. Step 1: Write the proportion equation
   57,120,146.86 : 78,825,895.96 = 31,014,715.18 : x
2. Step 2: Convert to fraction form
   57,120,146.86/78,825,895.96 = 31,014,715.18/x
3. Step 3: Cross multiply
   57,120,146.86x = 78,825,895.96 × 31,014,715.18
4. Step 4: Simplify right side
   57,120,146.86x = 2,444,762,712,007,712.50
5. Step 5: Solve for x
   x = 2,444,762,712,007,712.50/57,120,146.86
6. Step 6: Final answer
   x = 42,800,357.60