Finding the Fourth Proportional to 57,205,089.95, 78,943,922.33 and 31,099,707.47

Step by Step Solution

1. Step 1: Write the proportion equation
   57,205,089.95 : 78,943,922.33 = 31,099,707.47 : x
2. Step 2: Convert to fraction form
   57,205,089.95/78,943,922.33 = 31,099,707.47/x
3. Step 3: Cross multiply
   57,205,089.95x = 78,943,922.33 × 31,099,707.47
4. Step 4: Simplify right side
   57,205,089.95x = 2,455,132,891,039,262
5. Step 5: Solve for x
   x = 2,455,132,891,039,262/57,205,089.95
6. Step 6: Final answer
   x = 42,918,084.62