Finding the Fourth Proportional to 51,087,010.32, 76,563,978.84 and 20,759,418

Step by Step Solution

1. Step 1: Write the proportion equation
   51,087,010.32 : 76,563,978.84 = 20,759,418 : x
2. Step 2: Convert to fraction form
   51,087,010.32/76,563,978.84 = 20,759,418/x
3. Step 3: Cross multiply
   51,087,010.32x = 76,563,978.84 × 20,759,418
4. Step 4: Simplify right side
   51,087,010.32x = 1,589,423,640,482,715.25
5. Step 5: Solve for x
   x = 1,589,423,640,482,715.25/51,087,010.32
6. Step 6: Final answer
   x = 31,112,089.56