Finding the Fourth Proportional to 9,970,151.36, 13,758,809.28 and 5,386,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970,151.36 : 13,758,809.28 = 5,386,472.72 : x
2. Step 2: Convert to fraction form
   9,970,151.36/13,758,809.28 = 5,386,472.72/x
3. Step 3: Cross multiply
   9,970,151.36x = 13,758,809.28 × 5,386,472.72
4. Step 4: Simplify right side
   9,970,151.36x = 74,111,450,846,402.83
5. Step 5: Solve for x
   x = 74,111,450,846,402.83/9,970,151.36
6. Step 6: Final answer
   x = 7,433,332.57