Finding the Fourth Proportional to 99,065,699.50, 148,610,367.26 and 47,910,960.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,065,699.50 : 148,610,367.26 = 47,910,960.31 : x
2. Step 2: Convert to fraction form
   99,065,699.50/148,610,367.26 = 47,910,960.31/x
3. Step 3: Cross multiply
   99,065,699.50x = 148,610,367.26 × 47,910,960.31
4. Step 4: Simplify right side
   99,065,699.50x = 7,120,065,407,448,383
5. Step 5: Solve for x
   x = 7,120,065,407,448,383/99,065,699.50
6. Step 6: Final answer
   x = 71,872,155.99