Finding the Fourth Proportional to 144,662,656.74, 199,610,801.49 and 85,174,084.10

Step by Step Solution

1. Step 1: Write the proportion equation
   144,662,656.74 : 199,610,801.49 = 85,174,084.10 : x
2. Step 2: Convert to fraction form
   144,662,656.74/199,610,801.49 = 85,174,084.10/x
3. Step 3: Cross multiply
   144,662,656.74x = 199,610,801.49 × 85,174,084.10
4. Step 4: Simplify right side
   144,662,656.74x = 17,001,667,192,379,612
5. Step 5: Solve for x
   x = 17,001,667,192,379,612/144,662,656.74
6. Step 6: Final answer
   x = 117,526,302.75