Finding the Fourth Proportional to 9,872,403.94, 13,623,822.57 and 5,521,438.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,872,403.94 : 13,623,822.57 = 5,521,438.18 : x
2. Step 2: Convert to fraction form
   9,872,403.94/13,623,822.57 = 5,521,438.18/x
3. Step 3: Cross multiply
   9,872,403.94x = 13,623,822.57 × 5,521,438.18
4. Step 4: Simplify right side
   9,872,403.94x = 75,223,094,095,543.72
5. Step 5: Solve for x
   x = 75,223,094,095,543.72/9,872,403.94
6. Step 6: Final answer
   x = 7,619,531.63