Finding the Fourth Proportional to 57,856,912.84, 86,780,054.76 and 19,518,759.12

Step by Step Solution

1. Step 1: Write the proportion equation
   57,856,912.84 : 86,780,054.76 = 19,518,759.12 : x
2. Step 2: Convert to fraction form
   57,856,912.84/86,780,054.76 = 19,518,759.12/x
3. Step 3: Cross multiply
   57,856,912.84x = 86,780,054.76 × 19,518,759.12
4. Step 4: Simplify right side
   57,856,912.84x = 1,693,838,985,280,849.50
5. Step 5: Solve for x
   x = 1,693,838,985,280,849.50/57,856,912.84
6. Step 6: Final answer
   x = 29,276,345.77