Finding the Fourth Proportional to 1,407,987,123.37, 1,943,120,438.16 and 930,848,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,987,123.37 : 1,943,120,438.16 = 930,848,505.50 : x
2. Step 2: Convert to fraction form
   1,407,987,123.37/1,943,120,438.16 = 930,848,505.50/x
3. Step 3: Cross multiply
   1,407,987,123.37x = 1,943,120,438.16 × 930,848,505.50
4. Step 4: Simplify right side
   1,407,987,123.37x = 1,808,750,755,872,599,040
5. Step 5: Solve for x
   x = 1,808,750,755,872,599,040/1,407,987,123.37
6. Step 6: Final answer
   x = 1,284,635,864.81