Finding the Fourth Proportional to 42,123,928.88, 63,188,342.80 and 11,834,153.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,123,928.88 : 63,188,342.80 = 11,834,153.84 : x
2. Step 2: Convert to fraction form
   42,123,928.88/63,188,342.80 = 11,834,153.84/x
3. Step 3: Cross multiply
   42,123,928.88x = 63,188,342.80 × 11,834,153.84
4. Step 4: Simplify right side
   42,123,928.88x = 747,780,569,589,856.25
5. Step 5: Solve for x
   x = 747,780,569,589,856.25/42,123,928.88
6. Step 6: Final answer
   x = 17,751,918.91