Finding the Fourth Proportional to 151,609,455.72, 209,221,048.73 and 81,994,836.52

Step by Step Solution

1. Step 1: Write the proportion equation
   151,609,455.72 : 209,221,048.73 = 81,994,836.52 : x
2. Step 2: Convert to fraction form
   151,609,455.72/209,221,048.73 = 81,994,836.52/x
3. Step 3: Cross multiply
   151,609,455.72x = 209,221,048.73 × 81,994,836.52
4. Step 4: Simplify right side
   151,609,455.72x = 17,155,045,686,841,236
5. Step 5: Solve for x
   x = 17,155,045,686,841,236/151,609,455.72
6. Step 6: Final answer
   x = 113,152,874.31