Finding the Fourth Proportional to 106,372,369.72, 159,231,298.28 and 69,404,659.12

Step by Step Solution

1. Step 1: Write the proportion equation
   106,372,369.72 : 159,231,298.28 = 69,404,659.12 : x
2. Step 2: Convert to fraction form
   106,372,369.72/159,231,298.28 = 69,404,659.12/x
3. Step 3: Cross multiply
   106,372,369.72x = 159,231,298.28 × 69,404,659.12
4. Step 4: Simplify right side
   106,372,369.72x = 11,051,393,978,358,444
5. Step 5: Solve for x
   x = 11,051,393,978,358,444/106,372,369.72
6. Step 6: Final answer
   x = 103,893,464.13