Finding the Fourth Proportional to 85,507,105.61, 128,214,518.46 and 38,795,096.48

Step by Step Solution

1. Step 1: Write the proportion equation
   85,507,105.61 : 128,214,518.46 = 38,795,096.48 : x
2. Step 2: Convert to fraction form
   85,507,105.61/128,214,518.46 = 38,795,096.48/x
3. Step 3: Cross multiply
   85,507,105.61x = 128,214,518.46 × 38,795,096.48
4. Step 4: Simplify right side
   85,507,105.61x = 4,974,094,613,005,887
5. Step 5: Solve for x
   x = 4,974,094,613,005,887/85,507,105.61
6. Step 6: Final answer
   x = 58,171,710.73