Finding the Fourth Proportional to 12,900,075.84, 19,349,413.92 and 3,923,928

Step by Step Solution

1. Step 1: Write the proportion equation
   12,900,075.84 : 19,349,413.92 = 3,923,928 : x
2. Step 2: Convert to fraction form
   12,900,075.84/19,349,413.92 = 3,923,928/x
3. Step 3: Cross multiply
   12,900,075.84x = 19,349,413.92 × 3,923,928
4. Step 4: Simplify right side
   12,900,075.84x = 75,925,707,064,277.77
5. Step 5: Solve for x
   x = 75,925,707,064,277.77/12,900,075.84
6. Step 6: Final answer
   x = 5,885,679.12